The Living Wallet looks like a regular wallet -- except for the small wheels on its sides. According to its official website, the wallet pairs with a bookkeeping app called Zaim, which works on the iPhone, Android, iPad and on the web. The wallet, created by a Japanese company, looks ordinary on the outside -- but inside, it's anything but. See also: 10 Weird Japanese Products That Are Actually Kind of Useful The wallet can apparently be set to two different modes, Save Mode and Consumption Mode.
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