If your home has ceiling fans, it may not have occurred to you to use them during the winter months. However, when you consider that hot air rises, it makes sense. There’s a lot of wasted warm air sitting in the upper part of a room, particularly if you have high ceilings.
Fans are normally set to run counter clockwise to circulate cool air in the summer. For winter use, reverse that so it runs clockwise. Turn it on low speed so that it will do its job without creating a draft. With proper use, you may find that you are able to turn your thermostat down a couple of degrees.