How to Keep Track of Expiration Dates

13. Bras

Ends in: six months $50 is the average price. Generally, when the wire of your bra juts out and stabs you in the heart, you know it's "expired." That doesn't, however, always occur in the allotted six months for bras. You should get new bras after six months because the underwire and padding have probably degraded and are no longer providing as much support.

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Chhaay Tee Bras/SShutterstock It's not enjoyable to change a bra for about $50 because bras are pricey. But because of its inadequate support, wearing a terrible bra can hurt your back or ribs. Most women wear the incorrect bra size, according to The New York Times, so you should get fitted while you're at it, especially if you've gained or lost weight.

14. Potatoes

Ends in: 3–4 months (fridge), 3–5 weeks (pantry). * Average Cost: $0.78 per pound The storage environment affects the shelf life of potatoes. When stored in the pantry, potatoes last for three to five weeks. But if you keep them in the fridge, you can buy yourself a little extra time—they last for three to four months. A number of factors affect how long potatoes will last on the shelf, such as the type of potato, cooking technique, sell-by date, and humidity level in your area.

Potatoes, Shutterstock, and Dmitriy Gutkovskiy Crucially, it's simple to determine whether a potato has become bad. Throw it away if it gets mushy or squishy. Throw away the potatoes if they smell musty or have internal flaws.