When it comes to disposal and/or cleanup of CFL light bulbs, the most important and thorough information comes from the Environmental Protection Agency.
Proper end result disposal is not going out with your regular trash, but rather taken to an approved disposal center. Most Home Depot stores will take them for proper disposal even if your city or county offers the same service.
Here is the EPA information link. You can download it as a PDF to print and/or save for future reference:
By Deeli from Richland, WA