For the past 5 years or so, when I want the light to go out in the room, I do the Clapper thing and clap twice real fast. If the light doesn't go off, I do it again, but louder, then again... After a few times my wife reminds me "We don't have the clapper!".
oops. She thinks I'm nuts. I curse the damn thing because it doesn't work when I clap, but we just never had one.
5 years!