Quote:
Originally posted by hot_pastrami
My friend's answer was this: Turn on a switch, then leave it on for a few years, enough time that it burns out. Turn on another switch, then enter the room. The burned-out light is switch #1, the light that is on is switch #2, and the light which is off is switch #3. Sloppy, but technically ok.
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You can speed it up by flipping switch one on and off for a few months, instead of leaving it on for years.
And I guess both solutions would be complicated if a bulb was bad to begin with.