My aunt gave me an electric blanket back at the start of winter. It's been the bestest gift EVAR. I've already turned it on to pre-heat my bed for tonight.

(It's supposed to freeze here before morning--which may not impress you, but I live in a building with no insulation. Not poor insulation, or inefficient insulation, NO insulation. I had to stick a foam board between my 'puter nest and the exterior wall to keep my mouse-hand from getting painfully cold.)