Fall is a good time to get things set up for cold weather. Here are things to do around 
the house to see where your warm air may be going, so you can keep your home buttoned up over the winter:
1. If you can slide a dollar bill in the gaps in your windows and entryways, you need to get those gaps closed up – that’s where the extra dollars on your energy bill are going.
2. Check your furnace filter. If you still have the box or paperwork that came in with your furnace filter, see how long the filter was supposed to last. Most say 90 days, so it may be time to switch that out.
3. A fireplace chimney should have an operational damper to close the flue off when you aren’t using the chimney. Make sure this functions – otherwise the warm, cozy air in your home is flying up your chimney.
4. Take a look at your gutters. It’s supposed to be pretty nice out for the next week or so, so if you place a ladder in a nice, solid place, wearing rubber soled shoes, you should be able to take a look at your gutters to see if they need to be cleaned.
5. While you’re up there – look at your roof. If there are any missing shingles or there seems to be granule loss or discoloration in your shingles or cracking in shingles or shakes, get them looked at by a professional roofer.
The basic idea is to make sure there is nothing in your home that no longer functions or lets out the cozy air of your home.