The death of cash

Imagine walking into a store, grabbing your favorite pound of coffee beans from the shelf, tapping through your payment on your mobile device, and strolling right out. No checkout. No lines. No waiting. Now imagine that that before you go, the app you’re using reminds you that you might need coffee filters. Relieved at narrowly missing that feeling of remembering what you forgot halfway home, you go to grab those filters, too. But (here’s where it gets really cool), the app alerts you that a different brand of coffee filters are available at a better deal–more for the same price!…

This story continues at The Next Web