As you are pulling together your receipts to qualify for every last deduction you can get...remember if you did anything to your home to make it more energy efficient during the past year, you may be eligible for a federal tax credit. For example, if you installed new Energy Star windows, you may be eligible for 30% of the total cost (not including installation), up to $1,500 cash back.  Insulation, heating & AC systems, roofs, water heaters, and storm doors are other items that also qualify.

Go to the US Dept of Energy's site to find out if you qualify.