Remember my idea for keeping track of when your makeup expires by writing the purchase date on your products with a White-Out pen? Here’s an even smarter idea.
Timestrips are useful little stickers that track both time and temperature with an indicator that changes color when a product has gone kaput. Stick them on your new foundation bottle, lipstick tube, or compact and they’ll keep you informed of when your makeup has met its germy end.
The timestrips work on every product except for nail polish and mineral powders, so pick some up and sticker all your goods!

Now that is a smart product. Thanks.