How do you warm up your hands?

[cry4eternity]

First of all, I don't mean warm them up as in get them ready for playing. I mean warm them up as in make their temperature rise.

Maybe it's just me, but when my hands are cold my fingers don't like to move very fast. Living in northern Michigan, it's kind of hard to avoid my hands getting cold when it isn't summer. I also think I have some kind of blood circulation problem because my hands and toes are basically always cold, usually colder than everyone else around me.

Before I left for college, I used to have a heater on the desk constantly blowing on my hands. But now I don't have that heater . Does anybody else run into this problem? And if so, what do you do about it?