I usually have a light or two on both inside and out. But on that night, I turn them all off and sit at the computer with nothing more than the monitor light. I live on a cul-de-sac and even when I did take the effort to pony up suitable extortion to the local munchins, I'd be lucky to have just 2 or 3 groups darken my door.
Not that I'm against kids out having fun, but it just ain't worth my time decorating and playing along for just 4 kids. I have snack-size candy bars on hand 365 days a year so if some little monsters do infiltrate my perimeter they will at least be rewarded with my contribution to their dentist.