A popular item for skiers and snowboarders, hunters and people who have to work outside in cold areas, and found it in many outdoors shops, are disposable hand warmers. If you haven\'t used them before, you\'re missing out on a cool way to keep your fingers and toes nice and warm. Warmers come in various shapes and sizes such as hand warmers ,toe warmers and body warmer  but all work about the same way.
One simply rips open the cellophane bag, exposing the hand warmer to air and -- instant warmth, warmth lasting for hours.
Put one in each pocket and keep those fingers from getting numb. They even have ones that fit in the soles of your boots. And some people even use them to combat the aches and pains of arthritis.