Tired of carrying around an overstuffed wallet? Enter the new “master” card: Coin. This Bluetooth-connected gadget looks and acts like any other credit card, except it allows you to condense your pile of plastic into one device. Using a mobile app and a card reader provided by Coin, you can upload multiple cards onto your Coin. Next time you make a purchase, just select which card you’d like to use and swipe the Coin through a store’s standard card reader like normal. Security features include a phone alert if it goes out of range and a lockout feature.

Preorder for $50 now; the product ships this summer and will then be $100, www.onlycoin.com