The Traveler's Adapter from Bracketron converts any cigarette lighter charger to work with a standard 120VAC wall outlet.  Simply plug in the car charger from your cel phone, PDA, iPod, etc. and then plug the Traveler's Adapter into a wall outlet and you're ready to go!  The Traveler's Adapter is compact for easy travel and provides up to 0.5 Amps of power which is more than enough for most portable devices.