If the furnace is out, she probably can't bake (a good stove being gas-fired). I'm going to suggest wearing a hat with ear coverings. You lose a lot of body heat through the top of the head, and retaining that heat will leave your body more to send to the fingers and toes. Also if you can heat water... hot chocolate will keep your body hotter longer than tea or coffee because of the fats in it. Carolly