The debate on what to tip a hotel housekeeper was part of a classic "Seinfeld" episode from the 1990s.
Now the American Hotel & Lodging Assn. is putting an end to the debate. The group recommends a tip of $1 to $5 per night, left in a marked envelope.
For a concierge, tip $5 to $10 depending on the service offered, the group said. If you ask a hotel staff to bring something extra to your room, such as a blanket, tip at least $4.
But no tip is required, the association says, if you ask staff to come to your room to fix a leaky sink or broken television or to replace a missing item.