Two, one to change the lightbulb, and the other to bask in the light of the old one.
Two. One to hold it in place, another to rotate the universe around it.
Just two, but you're going to need a lot of patience and light bulbs.
Electricity.
The match
None. They can't climb the ladder.
Hella. How long does it take them Days.
The Treepublican Party!
To bask in social approval.