Seal up those leaks!
Savings: Up to 30% of your heating and cooling bills.
So now that you've found all those leaks, what to do? Caulking and weatherstripping may become your new best friends.
Check out this chart to pick the right caulk for the job. Be forewarned, caulking can be addictive! The best time to caulk is during dry weather when the temperature is over 45 degrees to avoid shrinkage.
And don't forget caulking's buddy, the not-quite-as-much-fun, but much less messy, weatherstripping. Weatherstripping is used to seal air leaks around "movable joints," otherwise known as windows and doors. You'll be amazed the number of different types; here is a chart to help you pick the right weatherstripping.
On the grander level, you'll want to consider your current insulation. Insulation gets quite complicated pretty quickly, so you will probably want to check with a pro. First, check out the EEEE's insulation page here.
When you're done sealing leaks, take a look at your furnace.
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