At least one of my friends (ND-D) would be proud of me: as of tonight, all 21 of the lightbulbs in my apartment are compact fluoroescent, and in some cases of lesser luminosity than the ones they replaced. All told, if every light bulb in the place is blazing away, I'm still using less electricity than if only my kitchen and bathroom lights were on before replacing the bulbs.
Plus, unless I live here 20 years, it's unlikely any of them will ever need replacing.
It's a little thing, but if everyone did it, we'd use a lot less energy.