Once again, SuckUK, the London design house, has released an ingenious product: the tubemap wallet. Made of quality-grade black leather, this wallet, which retails for £35 (about $70), holds up to eight credit cards, has a fold-out see-through window for an ID and a cash sleeve. But the brilliant piece of the puzzle is the further folding out of the wallet reveals a full-color map of the London Tube (the wallet is also available for the New York City subway system). For anyone living in London or New York, this wallet allows you to carry one less item during your constant travels underground. Just don't loan your map to any suspicious-looking characters -- or you might end up losing more than your sense of direction.