Spend a lot of time using your computer every single day? It can get a bit boring at times. You could certainly energize yourself with a hot or cool drink, depending on the season. These 3 products keep your drink cool or warm while getting their power through a USB port:
Mr. Coffee MWBLK Mug Warmer: keeps your coffee or tea warm. It has an on and off switch. It has an ultra portable design.
Mini USB-Powered Fridge Cooler: this mini fridge is powered entirely via a USB port. It keeps a 12oz beverage cold. It is compatible with Macs and PCs.
Thanko USB Cup Cooler Warmer Holder: not only cools your drink down or warms it but also holds it. You will have fewer accidents when using this.
Not all of these are cheap but they do make life easier for computer addicts and busy professionals.