The government is expected to unveil a new program in the next
   couple of months that, if approved, may reimburse homeowners for
   up to half the cost of making their homes more efficient. Through the
   program, homeowners will receive the largest return from simple
   upgrades like caulking windows, adding insulation, and changing
   incandescent light bulbs to those that are more energy-efficient.

   To determine which energy-efficiency upgrades are best for their
   house, homeowners should obtain a energy audit. Homeowners are
   advised to hire a contractor licensed by the Building Performance
   Institute or the Residential Industry Services Network. These
   contractors have been trained to first test a home to determine the
   amount of energy it is losing, and then make suggestions or
                            renovations.