Many of us have a wallet full of cards: credit, debit and membership cards, so how about keeping up with all the information by having a microchip inside your skin?
According to WJTV, 4,000 Swedish people have now replaced one or more of their cards with a microchip implant, which they use to make purchases.
The chip is about the same size as "one of the legs on a normal plug" and one may choose where they want the chip implanted.
