One. Five. One.
Two. Plus a portable phone an Internet link and a copy of the "Bluffer's Guide to Changing Lightbulbs."
None - the lightbulb has the capacity for its own revolution
Doesn't matter. Lightbulb is going to die anyway.
How many libertarians does it take to screw in a light-bulb? None. The market will take care of it.
None. The piano player can do that with his left hand.
