Ok so we have tons of USB-powered products that offer warmth this winter season, but the USB Leg Warmer is definitely one of the more hilarious candidates. It comes with a dial for you to adjust the temperature so that your calves remain warm and toasty as long as you remain tethered to it. I would suggest putting up a visual reminder on your desk whenever you use this to make sure that it isn’t connected to any USB port before you get out of your chair lest you actually drag your notebook or computer to the floor along. Curiously enough, there is a built-in air pump that works exclusively from the warming function – I suppose it provides some sort of compression to sore and tired muscles.