Washing and drying your clothes can use a fair amount of energy.
To save energy and money, try washing your clothes in cold water and make sure you have a full load before starting.
Also when drying your clothes, try not to over-dry them – 50 minutes often works best for a full dryer. Finally, always make sure to clean the inside lint filter before each load.
One more thing, if the weather is nice, why not try drying your clothes with solar power by using clothes line.