I've been reading blogs and interviews and things about how different people stay warm and keep costs down in the winter. My heating system normally runs from November 1 -- March 31 (if it dips below 35 outside, I'll turn the system on sooner in October), and I keep my heat set at 62 when I'm home and 55 when I'm not. I wear a scarf in the house, but am pretty comfy (heavy drapes hang from all the doors and windows). How about you? How low do you go?