Line of Trade Slim Wallet
Credit: Photograph by Michael Pirrocco

Despite endless advances in technology and untold attempts over the ages, one goal has continued to elude mankind: a wallet that is functional without being a crippling lump. Minnesota-based Line of Trade may have solved the riddle for good. It's made of the same soft but long-lasting leather used for Red Wing boots and capable of holding 15 standard cards plus a sliver of cash tucked inside, and yet is just 5 mm thick (that's a fifth of an inch). [$50;]