Now that I'm a Macbook Air and iPhone 4S user, I find myself consuming multiple electrical outlets when I travel. There's a solution - the Plugbug from Twelve South.
The Plugbug is a simple addition to your existing Macbook adapter that enables you to charge the Macbook and your iPad or iPhone simultaneously.
Twelve South has many other interesting Mac accessories to declutter your desktop and enhance your use of Apple devices.
Simple charging with one adapter for all your devices - that's cool!