We've been getting quite a few emails and questions regarding CFLs. Below you will find some information that I hope will prove useful:
5 Ways to Recycle a CFL
How to live with CFLs
Sierra Club's "Mr. Green" on CFLs
In response to those of you who have asked about "dimmable" and other types of CFLs, I suggest you inquire about them at your local hardware store or search online.
Yesterday I spoke with a representative from the SF Department of the Environment about the best way to dispose of used incandescent bulbs. Unfortunately, the best way to dispose of them is to put them in the garbage. The good news is that, if you're replacing your incandescent bulbs with CFLs, you'll be saving resources in the long-run!