...So a few months back, at the local Kinko's, I saw a very silly product: a USB coffee mug warmer. I pointed it out to my roommate and we had a good laugh.
So then he bought me one for my birthday. (He has a long history of purchasing me gag gifts, especially items we have mocked in a store -- a few years back it was a horizontal stand for my PS2.)
The first problem, as you might expect, is that it doesn't really work very well. It gets hot enough to burn your hand, but not hot enough to keep your coffee warm. (It also seems slightly undersized for my mug.)
Also, the USB cable is very short, so the only ports I can plug it into if I actually want it to be within reach are the ones on the front of my computer. And my computer is on the left side of my desk.
That's right...my coffee warmer is left-handed.