From the same people that gave you USB eye warmers comes another way to tether yourself to your laptop. These are slippers that connect to that free USB port and warm your feet – though the manufacturer won’t call them slippers, but Hot Roomshoes (see URL). Though, it seems kind of redundant when you can have an electric heater in your room.
It only comes in one colour (brown), but in two sizes – one large and one medium – and both cost only 1, 980 yen (same price as the eye warmer), or approx. AU$24.21.