Two. One to hold the bulb and other to drink until the room spins.
Electricity.
Kaboomshki
TAKBEER!
Everyone drinks the kool-ade on the first day.
One for the money, two for the show.
None 'cause it's already lit, fam.
Seven - one to actually change the bulb and six to complain that they liked the old one better.
Two. One to hold the bulb, and one to drink until the room starts spinning.
To hold up their pants.
Soak it in gasoline, hold a match up to it, and "woof!"
In the summer there is a tax deductible convention in Hawaii dealing exactly with this issue."
None, we just swap out your whole house
3 Lannisters.
A dog who can lick himself from across the room