That's a good one!

Also avoiding the 1-2% fee to wall street.

In Prague, they integrated Bitcoin pqyment options with this ToastTab-like app, which has NFC/QR stickers with IDs for every single table in the restaurant. You don't have to use them for ordering, but can easily and quickly pay the tab and check yourself out, choosing your payment option.

I'd see this even more suitable for Square, why not everyone.

The current tab payment process with credit cards in the US is grotesque. The waiter has to come to your table 3times and back just to process the payment.