How much should you tip hotel housekeeping in Hurghada, Egypt (and in what currency)?

One traveler suggests bringing US dollars and asking reception or the hotel bar to break a large bill into smaller ones — much more practical than chocolate, which just melts in the heat.

Another traveler used to leave $1 or 50 EGP daily, but stopped once housekeeping started making towel animals as a 'thank you' — she wasn't a fan of the gesture.

Another guest leaves $1 every day and reports the room's mini-bar is always fully stocked as a result — he doesn't pay attention to the towel-animal decorations.