This is a design suggestion for apple's laptop power adapter. The current (2005) adapter design has a removable ac plug, a "duck head". The plug is removed when one wants to use a different country's plug type, or when the power cord extension is used. I often use the power cord extension, so I often remove the duck head. Recently, I lost the plug and cursed the duck head who designed it.
My suggestion is to put a female powercord plug next to the duck head on the side of the adapter. This way, I'd be able to simply unplug the cord when I travel and never touch the duck head.