1. Weather-proof your house: seal drafts, insulate lofts, triple-glaze windows
2. Centralise your air-conditioning system
3. Install low-flow showerheads
4. Get a more efficient water heater
5. Use energy-efficient appliances
6. Fit low rolling-resistance tyres to cars: they minimise the energy wasted as heat as the tyre rolls down the road
7. Use a fuel-efficient vehicle
8. Change the air filters on your centralised air conditioning
9. Tune up your air conditioning: get annual professional inspection and maintain it well
10. Get regular car maintenance checks
11. Wash your clothes at a cooler temperature
12. Turn the temperature on your water heater down
13. Stop leaving unused appliances on standby settings, which use power
14. Turn your thermostat down
15. Avoid the tumble dryer: line-dry washing
16. Drive at a maximum of 90 kilometres per hour (55 miles per hour)
17. Car pool and “trip-chain”, running errands together

Read More: http://www.newscientist.com/article/dn18048-how-laundry-could-slash-us-carbon-em