Replace a regular incandescent light bulb with a compact fluorescent light bulb (cfl)
CFLs use 60% less energy than a regular bulb. This simple switch will
save about 300 pounds of carbon dioxide a year.
Install a programmable thermostat
Programmable thermostats will automatically lower the heat or air
conditioning at night and raise them again in the morning. They can
save you $100 a year on your energy bill.
Move your thermostat down 2° in winter and up 2° in summer
Almost half of the energy we use in our homes goes to heating and
cooling. You could save about 2,000 pounds of carbon dioxide a year
with this simple adjustment. The American Council for an Energy Efficient Economy has more tips for saving energy on heating and cooling.
Clean or replace filters on your furnace and air conditioner
Cleaning a dirty air filter can save 350 pounds of carbon dioxide a year.