Depends where you live and how many exploiters / beggars there are. I've been in some places barely get any and other places 3-5 times a night. Places known more for *generous* middle class or foreigners get hit more often as well. Quite a few beggar types come in from other places during the Christmas period because they can make a lot of money in bigger cities especially with foreigners (as our wives / gf's often insist we give) yet those people follow the main residential lines. If you live in a spot less noticable to those who don't know it they pass you by thinking nothing of it.

Still yes it lasts more then 1 night and I've seen christmas beggars (not the real carolers) go from beginning of November and even still show up early Feb looking for that *merry pasco*. Still the idea isn't much different then my Halloween comparison.