I really hate it when the cable from my mouse puts so much weight on the mouse that it moves when I take my hand off it. I really, really hate it when the charger for my iPhone falls off the desk and I have to go digging to find it.
To keep that from happening you need some kind of weighted cable management system. I have seen plain ones before from companies like Razer but iida has a cool new set of cable management things called Ranger.
The Ranger cable managers look like those green plastic army men that most of us played with as kids. They are attached to an external charger with a long cable of 1.5M. You can plug the cable from the charger into compatible devices to charge on the road. The Ranger is available in Japan for 1880 yen plus tax.