One coin for all your cards
Using technology to help me leverage the tools I already have makes me giddy. Coin is one of those technologies. This solves a huge problem with western consumerism. Too many cards and no secure way to store them. What I love about Coin is that it consolidates all your gift, debit, and credit cards without adding copious amounts of complexity to your existing experience with those cards.
Definitely going to be keeping a close eye on this product.