I'm doing my part to save the planet

I've already changed all of my light bulbs to CFL's. I take my resusable bags to the grocery stores. I reduce, reuse, and recycle whenever I can. I mulch the grass instead of bagging it (I admit, that's lazyness on my part). Since I'm a recluse I only have to buy gas once a month. What else is left?

Now that it's summer here in South Carolina I've set the thermostat to 78°, that's 4°warmer than last year. It takes some getting used to, but I think I'll survive.