When to Replace Common Household Items

Nothing lasts forever.

That said, many items are less obvious than the spoiled milk in your fridge — there's no expiration date or other obvious signs they have outlived their use. So how long should you let your stuff linger before replacing it? We talked to the experts and nailed down a "best by" date for, well, just about everything:

COSMETICS
Replace after: Three months to two years
Why: Microbe growth in makeup can cause skin irritations and infections, explains Paula Begoun, author of "Don't Go to the Cosmetics Counter Without Me." The worst offenders are liquid cosmetics, which build up bacteria more quickly. Keep mascara for a maximum of three months; other liquids and creams (eyeliner, foundation) for no more than a year. Powders (eyeshadow, blush) can be used safely for up to two years. Read more from the source..