Most people don’t think about when to replace household essentials until something breaks, smells, or stops working. But waiting too long can lead to hidden germs, wear and tear, or even safety risks.
Knowing how often to replace basic household items can help you stay ahead of the game and save money in the long run. Here’s a simple guide to the essentials and when they need to go.
Pillows
Replace every 1 to 2 years
Pillows collect sweat, dust, and skin cells over time. Even if they still feel comfy, old pillows can lose shape and cause neck pain. They also become a breeding ground for dust mites.
Fluff your pillow in the dryer every few weeks to help extend its life. But if it’s flat or lumpy, it’s time for a new one.
Mattresses
Replace every 7 to 10 years
A good mattress supports your sleep and spine. Over time, even the best ones lose their support and collect allergens.
If you wake up with back pain, notice sagging spots, or can’t remember when you bought it, it’s probably time for an upgrade.
Towels
Replace every 2 to 3 years
Towels get rough, thin, and less absorbent over time. They also trap bacteria if not dried properly after each use.
Wash them every few uses and avoid fabric softener—it can make them less absorbent. If they smell musty even after washing, it’s time to toss them.
Shower Curtains and Liners
Replace the liner every 6 to 12 months
Replace the curtain as needed
Plastic liners collect soap scum and mildew quickly. If you see mold or a pink film at the bottom, throw it out.
Fabric curtains last longer if you wash them regularly. If they start to stain or smell, it’s time for a replacement.
Sponges and Dish Brushes
Replace sponges every 1 to 2 weeks
Replace brushes every 1 to 3 months
Kitchen sponges are one of the dirtiest things in the house. Even if you microwave or boil them to kill bacteria, they should still be replaced often.
Dish brushes last a bit longer, but if the bristles are frayed or smelly, toss them out.
Toothbrushes
Replace every 3 to 4 months
Dentists recommend swapping your toothbrush at least every three months—or sooner if the bristles are frayed.
After a cold or flu, replace it right away. Germs can linger on the bristles and lead to reinfection.
Air Filters
Replace every 1 to 3 months
Your HVAC system depends on clean filters to work properly. Dirty filters make it harder for air to flow, raising energy bills and spreading dust.
Check your filter monthly. If it looks gray or full of dust, swap it out. Homes with pets or allergy sufferers may need to replace filters more often.
According to the U.S. Environmental Protection Agency (EPA), clean air filters can significantly improve indoor air quality and reduce health risks from allergens.
Water Filters
Replace every 2 to 6 months
Check your filter’s instructions—each brand is different. If your filtered water starts to taste or smell funny, the filter may be clogged.
Failing to replace filters on time means you’re not getting clean water, even if it looks clear.
Smoke and Carbon Monoxide Detectors
Replace the batteries every year
Replace the entire unit every 8 to 10 years
Test these alarms monthly. If you hear beeping or chirping, the battery is probably low. If your unit is older than 10 years, it may not work at all.
This isn’t just a maintenance task—it’s a safety issue.
Nonstick Cookware
Replace every 3 to 5 years
When nonstick pans get scratched, they lose their coating and can start to break down. While most are safe when used correctly, deep scratches may lead to flaking.
If food sticks more often or you notice black specks, it’s time for new cookware.
Cutting Boards
Replace as needed—every 1 to 5 years
Plastic boards with deep knife marks can trap bacteria, while wooden ones may split over time. If your board has cracks or stains that don’t wash out, it’s probably ready to go.
Rotate multiple boards to avoid cross-contamination between raw meats and vegetables.
Brooms, Mops, and Vacuums
- Broom heads: Replace when bristles wear out or fray
- Mop heads: Replace every 2 to 3 months (or sooner if it smells)
- Vacuum filters and bags: Follow the manufacturer’s guide, usually every few months
Keeping these tools fresh means your cleaning efforts actually work—and don’t just spread dirt around.
Some items wear out slowly. Others build up dirt and germs without you noticing. That’s why having a simple replacement schedule helps keep your home clean, safe, and healthy.
Set reminders or mark your calendar for the most important items. A little planning now saves you time, hassle, and money later. Because when it comes to your home, the little things really do add up.
Learn how to create a ‘big purchase’ budget so you’re ready for planned upgrades and surprise expenses.
