There are undoubtedly sounder ways to keep your coffee warm, but for the true gadget geek there's no more appropriate way than this $15 USB Cup Warmer. Just wrap this sleeve around your cup and plug it into the USB port of your laptop. Sure, there are certain potential hazards when tethering a mug of scalding liquid to a mobile device, but we're willing to overlook them for the prospect of a cup of coffee that never goes cold.
[Via Gizmodo]
