I know this may not sound like much, but this is what I am doing right now. I keep the ac and heat off as much as possible, only use lights in the rooms people are actually in as well. I also have begun recycling, which amazes me because about 90 percent of the stuff we used to throw away can actually be recycled! I have also switched to natural and organic products and they work so much better. The biggest thing for me personally is that I am now a vegetarian. I never ate a ton of meat/poultry, but when I read that it takes something like 10,000 pounds of grain to produce one pound of meat, it just sounded like such a waste. Next year, we are also going to purchase a hybrid car. I am trying!