I've been on many cruises and I love them all, Alaska being our favorite. The first thing I do when I get on board, is head for the consiers (I think) desk and have the 18% gratuities taken off my bill, I will tip according to service. Some that they charge you gratuities for is you don't even see them. I've had no problems having the charges taken off. And they do not question you or try to keep them on. All cruise lines have been very acomadating to my request.