It might seem weird that I installed a fancy new way to pay for things but still felt the need for cash in my pocket. I was going out to dinner with some friends and cash is still the most convenient way for me to pay for drinks at the bar. We had six people trying to pay their bar tab all at once and half of them wanted to use a credit or debit card. Paying your bar tab would seem to be natural fit for applications like Apple Pay, Samsung Pay, and Android Pay but that would probably require a special purpose tablet with a NFC credit card reader.