What are some tips to stay warm?

I put my sweater in the drier. I turn the stove on, I wear my parka to bed, and I put the bed as close to the heat source and away from the window. sometimes I take a warm shower. What about you? What are some tips and tricks to stay warm indoors and out.

P.S. I also like hooking together 9 volt batteries for short periods, and putting them in my gloves.