Michael
Petruccelli says: Improve How You Heat and Cool Your Home and Save $500. Caulking up leaking windows saves on both heating and
cooling. So does improving insulation in your attic and installing a
programmable thermostat. Even though you might spend on materials for these
home improvement projects, you’ll see savings on your energy bills, by as much
as $500 in a year. Some electric companies have free energy audits, with
refunds for people who upgrade their insulation or energy efficiency.