handwarmer mug
During my many visits to Greenland and other cold or freezing countries, I have always relied on my handwarmer mug to keep my brew toastie and warm. Although my treks have taken me into sub zero weather and have been at the mercy of Polar Bears and other dangerous things, I rely on my handwarmer mug to at least give me a bit of comfort in some of the worst conditions any human should try to endure. When I come out of the cold and and am back in a better climate I still use the handwarmer mug to keep my brew hot.
