Your current wallet may work well enough, but is it really secure? The brilliant minds at Obstructures can keep your money even safer with their A3 Wallet, which is laser cut from unbroken aluminum and uses tension to keep your cash in check. But it does more than just slim down your stash. The wallet also provides enough surface area to operate as an RFID blocker that keeps your cards safe from thieves. And there's even an integrated bottle opener. Now that's smart.