Coin: Digitally Stores All Your Credit Cards

It’s easy to run out of real estate in your wallet when you load it up with credit cards, debit cards, gift cards, and — for some strange reason — 1981 Donruss baseball cards. But Coin ($50 to pre-order) lets you streamline your cash-carrier by digitally storing up to 8 credit, debit, gift, or membership cards all on one little black sliver. Switch between the stored cards via a button on Coin’s surface and then just run it through. Coin needs a smartphone for setup, and that phone also beeps if you’ve left the card behind.