You can easily save power in your home during winter by wearing warmer clothing or throwing an extra blanket over the bed. When your heater is on, make sure you always shut windows and doors and keep the curtains closed, especially at night when a window can lose 10 times as much heat as the same area of insulated wall.
Don't over heat. Keep rooms at a comfortable 18-21°C in winter. Every one degree increase in temperature can increase the heating component of your power bill by up to 10 per cent.