Wash pillows every few months and change linens weekly, and you might rest easy.

Head off the hurt: Research has shown that switching out old mattresses can help relieve pain and stiffness.

In Your Gym Bag

EARBUDS

Stash for as long as they work.Keep on rockin'!

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Wipe earbuds weekly with an alcohol swab, and store them away from dirty sneakers, Scott advises.

If you get ear infections, headphones that rest around the ears cut down on germs.

A wash fixes it.

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Ladies who don’t sweat heavily can air-dry their bras between workouts and machine- or hand-wash after three uses.

Heavy sweaters should wash bras each time.

In the Bathroom

TOOTHBRUSH

Trash it after three to four months.

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Rinse it well and dry it upright, and your brush should stay clean.

LOOFAH

Trash it every three months.As you exfoliate, your loofah collects skin, which bacteria snack on.

Launder it every week or two, and buy a new one every season, Dr. Newburger says.

EARBUDS  Stash for as long as they work. Keep on rockin' Wipe earbuds weekly with an alcohol swab and store them away…

Or skip it entirely: Your hands and abody scrubsmooth skin equally well.

If so, disinfect a file with alcohol before each use.Emery boardsget dull before they get overly buggy.

In the Kitchen

SPONGE

Trash it every 30 days.

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When it gets brittle, discolored or beat up, toss or recycle it and replace it with glass.

REUSABLE GROCERY BAG

Stash it.Go greenandclean.

(Thanks for the mental image!)

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METAL NAIL FILE  Stash it. You only need to worry about germs on files if you have a skin infection or damage around the…

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