The switch to CFL lighting has been on my "I've Done It" list for awhile because the majority of bulbs in our house have been switched. However, since throwing away an incandescent before it life cycle has been completed 100% would just be plain wasteful, I still have a few left. My older boy's room has been short one bulb (it burned out days ago) and I have been waiting for the other to follow suit so I can replace both - and today I got the chance. Now I have replaced both and brought my CFL total up to 15!