If you have a waterbed, it can be the largest electricity user in the home. Regularly making the waterbed with a comforter can save more than 30% of its use; tucking in covers along the sides can save more than 10%. Consider putting the waterbed heater on a timer so that it doesn't waste energy throughout the day.

Electric blankets are also big electricity users.
Turn them off in the morning when you get out of bed. If you are using an electric blanket, your furnace thermostat can be turned down for the night.