Prefer familiar neighborhood routes and use the rule that lights on means welcome: skip porches with no lights or a not participating sign. Children should go in groups of two or more, with parents following at a visible distance.

The etiquette is simple: knock or ring once, say trick-or-treat or a holiday greeting when the door opens, take one or a handful, say thanks, and leave. Don't pick through the candy, reach into the bowl, or cross the fence.