hows this a new idea?

Proximity payment card? thats one of those rfid cards?

hows that better than my visa debit card?

Shops get right irked when you use a card , as do the customers in the queue behind you. Putting an RFID chip on it isnt gonna fix that.

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In the building where i work if you wanna eat lunch you not only have to bring cash - you have to bring the right goddam change!!