10 low-cost home improvements

Add more insulation

Helping your home battle the elements will make it cheaper to heat and cool, and easier to maintain a comfortable temperature in every room. Most attics can be upgraded for less than $2,000.

If you're leaking heat and cool air through the sides of your home, look into blown-in insulation, which will add an extra layer of protection directly into the walls. You'll spend about $35 per eight pounds of insulation.

To figure out how much insulation you need based on where you live, check out guidelines from the U.S. Department of Energy.

Caulking and weather stripping can cut utility bills and keep that cold shiver from running down your neck. If you're not sure where to start, let a home energy audit point out the gaps and help you stop leaks before they start.