I usually hang my clothes outside on a line too. Last month we had a very rainy month and I had to use the dryer a lot. When the bills arrived, I figured that it cost me about $50 to run the dryer!! I save rain water to water my indoor plants as well as to water the garden. I compost and recycle everything I can. We keep our heat down low and wear sweaters. In the summer we keep the blinds down to keep the heat out. Our house came with central AC, but we never turn it on!