This seems like a bit of a trivial question, but: when staying in a hotel for multiple nights in a row in a location where tipping the housekeeping staff is customary, is it better to leave cash tips for housekeeping every day that the room is kept, or just to leave a single cash tip for the whole stay at checkout?
I would think it likely that different housekeeping crews work different days (especially, e.g., weekends versus weekdays), and it only seems fair to try to ensure that everyone who has worked on the room gets a part of the tips. But, if it's typical, say, that housekeeping staffs pool the cash tips and distribute them more-or-less evenly, then it's not really worth the trouble of leaving tips daily.