I have two complimentary things I started doing last winter: - Keep my home’s heat 1 or 2 degrees cooler than I would find optimally comfortable - When I feel

I have two complimentary things I started doing last winter: - Keep my home’s heat 1 or 2 degrees cooler than I would find optimally comfortable - When I feel cold, I do a set of pushups to warm myself back up. Usually about once an hour. A set is usually about 20 pushups. This has multiple benefits: - The very slight discomfort of the cold keeps you less drowsy - The pushups are good for you and help wake you up - Keeping the heating a little lower has a small but non-zero impact on your heating bill