I live in the Seattle area, and it's about 31 degrees here, and this is a warm as it's going to be getting for the next several weeks. We can't turn the heater on because it costs too much money (according to my mother, the "Heat Nazi" as we've taken to calling her). So it's really cold inside. It's like my fingers are drunk or something. I can't get them to do what I want when I try to practice, and I can't feel them either. They're just too cold. What do you guys do to warm up?