I carry a wireless router ($20), a 9 ft 3 outlet extension cord ($0.99) and rarely have to move furniture or crawl under the desk anymore. Even better I can use the laptop in the comfy bed.......nice. The total weight is only about 8 oz. The extension cord also comes in handy in airports or airline club lounges with limited outlets and I often share a single outlet with others who plugged in first.
MisterNice