Old ideia (Score 1)

This idea already was used here in portugal... But didn0t have much success... after a year or so it was hard to find a store that accepted your cards. But hey! we also were one of the pioneers (if not _the_ peioneers) at introducing "Multibanco" (ATM), "Via Verde" (highway payment system)... :D BTW: here was called "Porta moedas Multibanco"...