We all have those things around the house we use every day without thinking twice—until one day, they start looking a little worse for wear. From your trusty pillow that’s seen better days to the sponge that’s become more of a Petri dish than a scrubber, everything has a shelf life (yes, even your sheets!). But don’t worry, we’ve got you covered with a handy guide to help you know when it’s time to bid farewell to your commonly used household items.

With spring-cleaning season upon us, now is the perfect time to make sure your home is in tip-top shape with replacements that’ll keep you safe, comfy, and totally on top of things!

1. Smoke Detectors (Every 10 Years)

Smoke detectors are one of the most important safety devices in your home. But over time, smoke detectors can become less sensitive due to a buildup of dust buildup or aging parts. It’s recommended that you replace smoke detectors every 10 years, regardless of whether they are still working. This will make sure they’re still functioning in case of a fire. Better to be safe than sorry with this one!

Editor’s Tip: Test your smoke detectors monthly and replace the batteries at least once a year (see below).

2. Smoke Alarm Batteries (Every Year)

While you should replace your entire smoke detector after 10 years, the batteries in smoke alarms should be replaced every year. Even if the alarm isn't chirping at you because the battery is low, the power inside can gradually drain, which could potentially cause your alarm to be ineffective when you need it.

Editor’s Tip: Mark a date on your calendar or set a reminder on your phone every year to replace your smoke alarm batteries. A good way to remember is to change them when change your clocks for daylight savings time!

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3. Air Conditioners (Every 10–15 Years)

Air conditioners are one of those high-ticket items that every homeowner dreads to replace. However, a home without a working air conditioner can be absolutely unbearable. On average, an air conditioner can last anywhere from 10 to 15 years, depending on the quality of the unit, how well it’s maintained, and the climate it’s used in. If your A/C is starting to struggle with cooling, or if it's no longer energy-efficient, it may be time to consider a replacement.

Editor’s Tip: To maximize your unit’s lifespan, regularly change the filters and have it serviced annually.

4. Air Filters (Every 1–3 Months)

Air filters help maintain the air quality in your home by trapping dust and allergens. Failing to swap your air filter regularly causes them to become clogged, which can lead to reduced airflow, higher energy bills, and poor indoor air quality. It’s recommended that you replace air filters every 1 to 3 months, depending on the type of filter and how often your HVAC system runs.

  • Standard fiberglass filters should be replaced every 30 to 60 days.

  • High-efficiency filters (HEPA) can last a bit longer, usually 3 months, but should still be checked regularly.

  • Homes with pets, smokers, or people with allergies may require more frequent replacements, potentially every 30 days, to ensure the air remains clean and fresh.

Editor’s Tip: Set a reminder to check your air filters regularly and replace them as needed. You can also sign up for a filter subscription service that delivers replacements to your door on schedule.

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5. Toothbrush (Every 3–4 Months) 

Don’t tell our dentists, but we just recently learned you should be replacing your toothbrush every 3 to 4 months. Frayed bristles can lead to less effective brushing and even irritate your gums.  

If you’ve been sick or had a cold, it’s a good idea to replace your toothbrush sooner, since germs can linger on the bristles. 

Editor’s Tip: Some toothbrushes have indicator bristles that fade to show when it's time to replace them, or you can set a reminder on your phone every 3 months to make sure you're staying on top of it. Time to swap out your brush? Our readers can drop the price of this Wave Electric Toothbrush from $69.99 to $39.99 to $38 with the code BD5OFF at Laifen.

6. Spices (Every 1-2 Years) 

While you may think that spices can last forever, they can actually lose their potency over time. As they're exposed to air, heat, and light, they begin to lose their flavor. Ground spices typically last 1 to 2 years, while whole spices (such as cinnamon sticks or whole peppercorns) can last 3 to 4 years You can test a spice by smelling or tasting it—if it lacks its usual fragrance or flavor, it’s time to toss it out.

Editor’s Tip: Store spices in a cool, dark place. Keep them away from direct sunlight or heat to extend their shelf life.  You can also write the date you open them directly on their containers to keep track of their age.

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7. Toilet Brushes (Every 6–12 Months)

Toilet brushes probably aren’t something you think of replacing often, but they can become a breeding ground for bacteria.  You should replace your toilet brush every 6 to 12 months to keep it fresh and free of harmful bacteria. 

You can extend the life of your toilet brush by rinsing it thoroughly and allow it to dry completely after each use. A dirty, worn brush can actually transfer germs back to the toilet, which defeats its purpose.

Editor’s Tip: We love this 16-Pack Clorox ToiletWand Disposable Toilet Cleaning System which you can get for $20.86 at Amazon. The replaceable head is single-use, so you can ensure you're keeping your bathroom as clean as possible.

8. Sponges (Every 2–4 Weeks)

While we shamefully admit we often go by the, “throw it away when it looks gross” method, kitchen sponges should be regularly replaced every 2 to 4 weeks. Since they are exposed to all sorts of food particles and germs, they can become a Petri dish for bacteria.

Editor’s Tip: You can sanitize damp sponges by microwaving them for 30 seconds or running them through the dishwasher. This will help guard against bacteria, but you’ll still need to replace them when they start to look worn. Our favorite sponge set, by far, is this 12-Pack of Scrub Daddy Sponges from QVC. You can often use a new member coupon to get the lowest price possible.

9. Water Filters (Every 2–6 Months)

Water filters, whether they’re for your fridge, pitcher, or tap, should be replaced every 2 to 6 months, but check the manufacturer’s recommendations for your specific model. Letting this regular maintenance fall to the wayside and result in water that isn’t properly filtered.

Editor’s Tip: Keep track of when you replaced the filter by setting a reminder on your phone, or invest in a smart water filter that notifies you when it’s time for a change.

10. Makeup Brushes (Every 1–2 Years)

Makeup brushes that aren’t properly maintained can lead to skin irritation and breakouts. It’s recommended that you completely replace your makeup brushes every 1 to 2 years to avoid accumulating bacteria. Brushes used for liquid foundation or concealers can wear out faster than powder brushes because product accumulates quicker.

Editor’s Tip: Regularly clean your brushes with a gentle brush cleaner or mild soap to extend their life and maintain hygiene. If you notice that the bristles are shedding or the handle is becoming loose, it’s time for a replacement.

Time to replace yours? Check out this selection of makeup brushes, starting at $18 at IT Cosmetics.

11. Microwaves (Every 9–10 Years)

While microwaves are generally pretty durable appliances, they do have a limited lifespan. Microwaves should be replaced every 9 to 10 years to keep them running safely and efficiently. If your microwave begins to show signs of uneven heating or starts making strange noises, it may be a sign that it’s time for a new one.

Editor’s Tip: Regularly clean your microwave to prevent odors and keep it running properly. Our team loves using the Angry Mama microwave cleaner regularly to keep our microwaves spic-and-span!

12. Cleaning Rags (Every 6–12 Months)

Cleaning rags won’t do you any good if they’re covered in germs! Due to their frequent use, they can quickly accumulate dirt, grime, and bacteria. It’s recommended that you replace your cleaning rags every 6 to 12 months, or sooner if they start to look worn out or have an unpleasant smell that won’t wash out.

Editor’s Tip: Wash your cleaning rags regularly and avoid using fabric softener, as it can reduce their absorbency. We recommend using microfiber cloths, like this 50-Count Pack of S&T Microfiber Cleaning Cloths, which are durable and highly absorbent.

13. Towels (Every 2–3 Years)

Towels get a lot of daily use, which can quickly lead to wear and tear over time. Replace bath towels and hand towels every 2 to 3 years to keep them as soft and absorbent as possible. Towels can degrade and actually become less effective at drying over time, and they may even start to smell musty despite frequent washing.

Editor’s Tip: Rotate towels your towels frequently to extend their lifespan.

Looking to replace your set? Our editors sweat by these Sonoma Quick Dry Bath Towels from Kohl’s. We can often find them on sale for $5-$8 a piece, and their quality is unmatched.

14. Carpet (Every 5–15 Years)

Carpets are a major investment in your home, and luckily they can last for several years will regular maintenance. But it’s inevitable that they will begin to show signs of wear like fading, fraying, or matting. Carpet should be replaced every 5 to 15 years, depending on factors like foot traffic, carpet quality, and how well it’s maintained. High-traffic areas, like hallways and living rooms, may wear out faster than bedrooms or less-used spaces.

If your carpet starts to look worn out, develops stains that you can’t seem to get rid of, or begins to smell despite cleaning, it may be time to replace it. Regular vacuuming and professional cleaning can help extend its lifespan.

Editor’s Tip: If you're considering replacing your carpet, look into modern materials that are more durable and stain-resistant. Choosing high-quality carpeting and installing mats in high-traffic areas can also help reduce the wear and tear, extending the life of your floors.

15. Bras & Sports Bras (Every 6–12 Months)

Sports bras and regular bras lose their elasticity and structure over time, especially with frequent use and washing. Replace sports bras every 6 to 12 months, and regular bras every 6 to 12 months, depending on how often they’re worn and how well they’re cared for.

You may find that sports bras will wear out faster because of the constant stretching during exercise. Regular bras can last a bit longer, but when the straps start to slip, the band feels loose, or the fabric begins to fray, it’s a clear sign that a replacement is due.

Editor's Tip: To extend the life of your bras, wash them by hand or in a mesh laundry bag, and air-dry them instead of using a dryer. Looking for a deal on new bra? Check out our latest below:

16. Shower Liners (Every 6–12 Months)

Shower liners are exposed to moisture daily, which can quickly lead to mold and mildew growth. Replace shower liners every 6 to 12 months or sooner if you notice visible mold, unpleasant smells, or wear and tear. Vinyl and plastic liners are affordable and easy to swap out.

Editor's Tip: Regularly wash your shower liner with a bleach solution or bleach-based cleaner to extend its life.

17. Bath Mats (Every 1–2 Years)

You may not think to replace your bath mats very often, but they can become dirty, stained, or worn down with time. They can also become breeding grounds for bacteria, due to their constant exposure to water. Make it a habit to replace bath mats every 1 to 2 years, especially if they show signs of fraying or mold growth. Mats that stay damp for too long can also accumulate bacteria, making regular replacements important.

Editor's Tip: Wash bath mats frequently and allow them to dry completely between uses.

Need to upgrade your bathmats? Our editors love this Set of 2 Union Rustic Washable Bath Mats which you can get for $22 at Wayfair.

18. Sheets (Every 2–3 Years)

A set of quality bedsheets can last you quite a while, but over time they lose their softness and become prone to fraying, fading, or tearing. It’s a good idea to replace sheets every 2 to 3 years, or sooner if they begin to feel rough or look worn. High-quality sheets will last longer, but even the best fabrics degrade over time.

Editor's Tip: Keep a couple extra sets of sheets handy so you can rotate them out. This will keep your bed feeling fresh and prolong the life of your sheets. Looking for a great deal on a new set? Check out our latest deals on bedding below:

19. Pillows (Every 1–2 Years)

Since they're used every day, pillows can lose their fluffiness and support over time. To ensure you get the best night's sleep possible (and properly support your neck and head) replace your pillows every 1 to 2 years. Even if the pillow still looks okay, it may be harboring dust mites, bacteria, or allergens. You may need to replace pillows more often if you have allergies or respiratory conditions.

Editor’s Tip: Fluff your pillows regularly to help them keep their shape. Be sure to wash them frequently (every 3 to 6 months) according to the manufacturer’s instructions.

20. Mattresses (Every 7–10 Years)

Your mattress is critical to your sleep quality, so it’s important to make sure you're replacing it regularly. A mattress can sag and become less supportive as it ages, which can result in poorer sleep quality. To stay on top of your beauty sleep, replace your mattress every 7 to 10 years. Looking to score a deal on a mattress? Our editors love to shop at Wayfair and Home Depot to get the best prices.

Editor’s Tip: You can prolong the lifespan of your mattress by rotating it every 3 to 6 months. Regular rotating will prevent uneven wear and help you stay comfy.

21. Running Shoes (Every 300–500 Miles)

While you may think the time to replace running shoes is when they start looking flat, you should actually be replacing your running shoes every 300 to 500 miles. This, of course, depends on your running style, the terrain, and how frequently you run. If you’re a runner who trains heavily or runs on rough surfaces, you’ll want to replace closer to the 300-mile mark. Casual runners and walkers can get away with replacing them after 500 miles.

But this isn’t always a hard-and-fast rule. If you notice that your shoes feel less cushioned, the soles are worn down, or you start to have more aches and pains after running, it’s time to replace them. Running in worn-out shoes can lead to joint and foot problems over time.

Editor’s Tip: If you run frequently, you might want to rotate between a few pairs to extend the life of your shoes. Looking for a new pair? We’ve got you covered! Check out our latest deals on running shoes below:

Save This Guide for Later!

We know it’s easy to forget that everything in your home has a shelf life—even the things you use every day! But don’t worry, our editors have created a handy guide to help you out. Feel free to take a screenshot of the graphic below to help you stay on top of when it’s time to replace your household essentials. When it’s time for a refresh, we’ll be right here to help you score a deal on everything from a new toothbrush to a replacement mattress!

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