How do you stay warm in winter?

I wasn't going to post today but I just received an email from a reader who needs our help to stay warm. Here is part of her message:"Last year I had three months of $100 heating bills. This year I was determined not to have that again. My thermostat is set at 58 when I'm home, 50 at night. I breezed through Nov. without the $100 bill and felt good. Same with Dec. I'm feeling really good. Then