Does anyone have any experience using the Wocket "Smart Wallet" by NXT-ID? You know where you can program a card for single use so some wannabe actor/waiter doesn't skim your card when you pay your bill. Limited acceptance? Ease of use? Convenience? My cards have been counterfeited 3x in the past year and getting a little tired of it. Hoping this would be a good defense. Any thoughts and experience?