Ok, I swear I'm not going to make this blog a soap box for my politics. But I really want to do a brief post about this site: One billion bulbs.com.
Their goal is to encourage individuals to change one billion of their old incandescent light bulbs to compact fluorescent bulbs. You can register and document any bulbs you change to aid them in their goal.
Changing an incandescent bulb to a compact fluorescent bulb can result in notable savings to your electric bill, reduce the hassle of routine bulb changes (they last 5-10 times as long as normal incandescent bulbs), and can help lower greenhouse gas emissions. And you don't have to do anything other than unscrew your old bulb and screw in the new one. My wife and I started changing over our bulbs about a year ago, and we've been extremely pleased with the results. I've added a advertisement to the bottom of my sidebar in case you'd like to check it out later.