I wanted to ask this one since I always seem to get the same response whenever a customer sees me use an umbrella upsidedown when I am cutting in ceiling speakers. It really helps catch all the junk and is faster than a huge drop cloth. Works remakably well and the cost is really nothing. We kinda have adapted it for in-wall speakers but it always seems to bend one of the arms.
"I was merely pondering the words of Socrates when he said " I drank what?""