The other day, my brother Scott Aiello tipped me off to a device that can be used as a convenient one-stop place to charge all of your handheld devices. It's called the Personal Electronics Power Station and it's available from several vendors on Amazon.com.
The Personal Electronics Power Station is an outlet strip with a special housing that allows you to clamp your handheld devices to its body using adjustible dividers. The body has an internal space where the plug ends of your handhelds' charging cables go. When not in use, the Personal Electronics Powerstation sits on top of a table or a bookshelf with your charging cables neatly organized.
Some of the comments I've read about this unit say that the internal plugs for the charging cables are two-pronged only and that adapters won't fit inside. That's a fair point, so watch out for that. Another common complaint is that the Personal Electronics Power Station doesn't support USB. How many of your handhelds charge only through USB connections? I can't think of any of my devices that have this problem.