Two. One to take out the bulb and drop it, and the other to try and sell it before it crashes.
or
......... one jar.
or
Does it have to be a light bulb? I've got this neat candle holder...
or
I said, "I can't make Tuesdays"
or
A garbage truck.
or
His son, because he's a little Bigger!
or
He took them to a pignic.
or