Block drafty doors with a towel.
You know which ones we're talking about...those doors you walk past on cold days that give your feet a blast of cooler-than-requested air. Roll up a towel and stuff it at the base of the door to keep that cold air out. It'll also help keep the warm air in.
Use your space heater.
There's no reason to turn up the furnace to heat up just the living room. Instead, turn on a space heater during those times when you're staying in one room?most likely in the same space on the couch. That space heater will keep your area nice and toasty, and your furnace gets to take a break and save you money.
Spark a fire (inside).
Your fireplace serves more of a purpose than displaying your breakables on the mantle. If you don't use it very often, it's a good time to start. Purchased in bulk, firewood is a relatively inexpensive fuel source for heat. Depending on what kind of wood you buy, you can find a half-cord of wood for about a hundred bucks that'll last you all winter long. And if you have gas logs in your fireplace, it's still a cheaper way to cast a bunch of heat to keep you warm.
Spark a fire (outside).
Whether you don't have an indoor fireplace or just want to enjoy the outdoors and still stay warm, a fire pit is the way to go. You can either dig a pit if you have proper clearance, or you can purchase a chiminea or outdoor fireplace. This way, you can still utilize your outdoor space, especially when you need it for those holiday parties.
Keep the "formal" rooms closed.
Are there any rooms in your home that don't get used very often? Keep them closed off. That way, your heater isn't working to keep those rooms warm when no one is in them.
Reseal your doors and windows.
Over time, the weather stripping on your doors and windows wears to the point that it doesn't effectively block cold air from coming in. Replacing it is a fairly easy and inexpensive task that'll prevent your doors and windows from inviting the winter in.
Hang some "winter" curtains.
If you weren't aware, curtains do more than block out the sunlight and deter Peeping Toms. They also act like a layer of insulation. Ever put your hand up to a window on one of the colder days and feel the winter "flowing" in? Some nice, thick curtains intended just for winter will prevent this at night.
Let the sun in.
Nothing provides a cheaper dose of warmth than our closest star. During the morning and afternoon hours, make sure to open your curtains and blinds to let the sunlight in so it can naturally warm your home.
And when you need to call in the pros, you can find heating and air professionals every day on Kudzu.com.