Just two, but they'd have to be really small.
Two. One to identify that the lightbulb has indeed burned out, and one to call the maintenence man to change the lightbulb.
Two, but they have to be very small.
November.
Just two, but you're going to need a lot of patience and light bulbs.
You have to deal with people who forget to close their tabs.
Just one guy with a really weird fetish.