From Co-op America:
Here's how to save energy and money. Go for a big, but doable goal – 10% energy saved per year over the next five years – 50% in five years!
For the average household, 10% per year energy savings is only about 1,000 kilowatt-hours (kwh) of energy/year. Here's how doable that is:
Many families could achieve the first 1,000 kwh/year of savings by washing clothes in cold water (770 kwh/yr); placing several major electronics, such as video and stereo systems, on a surge protector that can be switched off (47kwh/year); and brushing of their refrigerator's condenser coils twice a year (392 kwh/year).
Many families could get another 1,000 kwh/year reduction by replacing half of their incandescent lighting with compact fluorescents (440kwh/year), letting the dishes in the dishwasher air dry (404kwh/year), and enabling the "sleep" function on their computer and printer to go on after five minutes of non-use (259kwh/year).
Here is a link to their site on Steps to Energy Efficiency: http://www.coopamerica.org/pubs/caq/articles/summer2008/LevelOne.cfm