Learn how to use hand warmers to warm your mitts, gloves and boots. When the small disposable packet is taken out of the plastic wrapper and shaken in the open air, a reaction occurs which gives off heat for a couple of hours. Put these hand warmers into your mitts, gloves or boots to stay warm when its cold outside. The brand I use in the video is called HOTHANDS. These are available in many stores. There are also many other brands of hand warmers which will also work quite well.
Just internet search the words hand warmers to find products which are sold near where you live.