However, there's still a problem: getting the plug to fit. Here in the U.S., every standard 110v outlet takes a plug with two vertical, parallel contact plugs. Elsewhere, there's a huge variety of socket shapes and configurations. While the most common configuration is two large pins, there are many other variations. Until now, your only way of dealing with this mess was to carry a bag of various adapters, hoping one will fit the outlet in your Elbonian hotel room (gratuitous Dilbert reference).

Enter the Kensington Universal Travel Plug Adapter. By sliding the side buttons, you'll create an adapter that'll work in over 150 countries. Compact and lightweight, it's easy to pack in with your electronic paraphernalia. Twenty bucks at Kensington or Amazon or Office Depot.