One of the greatest complaints about chemical, disposable handwarmers is the inability to limit and restart the reaction to conserve the heat. Even more, once they have been used, they are considered trash. Thaw has set out to solve both these problems with its large and small personal USG-C rechargeable handwarmers — warm to the core by offering double-sided heating. They come standard with three different power settings and memory recall to return to the previous setting. The small handwarmer can heat up to 10 hours on low at 46C/114F, while the large handwarmer can heat up to 17 hours on low at 46C/114F. MSRP: $29.99/Small; $39.99/Large. Contact: www.thaw.acbrands.com