As a computer nerd, I’m doomed to walk the earth with as many electronic gadgets as possible. In fact, I was once questioned by Amsterdam’s Schiphol Airport security why I had two MP3 players and two cell phones. In spite of that (almost) international incident, I think there has never been a better time than now for gadgety-type traveling.
Companies today are marketing products that can charge multiple devices in multiple environments with just one plug. This means one less Blackberry plug in your carry-on and more space for souvenirs!
iGo sells dual-device power adapters that can be used on airplanes, on AC current, and in cars. They have models that can charge laptops in addition to a small device like a phone, MP3 player, or PDA. Ranges from $30 to $120.
Finally, the VersaCharger PRO consolidates all of your USB device chargers into one small adapter usable on a plane, in a car, or in a hotel. Around $25 to $30.
By the way, you get extra points if you attach any one of the previously mentioned chargers to the Tumi adaptor Erik mentioned. (Oh, and check the comments of that post to see cheaper Tumi alternatives.)