Thanks for the info in case of breakage, Erin! I have heard that some cities are now providing places where you can take the burnt out bulbs for disposal. My DH put them in my Living room floor lamps... He works for a power co, so of course, he is Mr Energy Efficient.
I will say tho, that I haven't had to change a bulb in those lamps forever. They last a long time. But, I don't like the mercury content....
Your info was very helpful.... thanks again...