“Sometimes sheets are not changed daily. This is true not only for unused beds but also in general. Shady and cheap hotel/motel managers and owners encourage staff to check if the sheets look clean. If they do, they tell housekeepers to tighten it up from the corners.”
#15 Not just the elevator, but the ice machine, vending machines and the always-set-to-slam-hard stair door on each end of the building. Also, the best ear plugs are the wax plugs swimmers use. Not those ineffective foam plugs. Those wax plugs when properly jammed into each ear will render you legally deaf.