One briefcase. Four piping hot lattes. Two hands. Sure, it's amusing to watch hapless beverage-juggling. But frankly, it's also a recipe for third degree burns. (Not to mention customers who buy fewer drinks because they can't carry them back to the office.)

Existing cup carriers? Don't be silly. Not only do they look like ostrich egg cartons, you have to hold them from underneath - which isn't very clever.