How many advertisers does it take to change a light bulb?
- None, because, look! It's getting brighter! It's definitely getting brighter !!!
- None. "There is no need to change the light bulb. Recent surveys show growing confidence in the light bulb lighting up again."
- Two. One to screw it in, and a second to hand out leaflets.
- Three. One to change the light bulb and two to hold a large billboard saying "Here we screw in the best light bulb money can buy."