And the power cable? Here is mine, complete, with my Droid on top.
For traveling, every inch counts.
I don't have to travel too often, just a few times a year for work when they fly me back to Cambridge...but every place I have stayed at lately has WiFi on the network. I would just shove the router in one of my bags, it's weight is pretty light including the small wall adapter. Adapter is not any thicker than the height of the router itself.