No new ideas, Peter, so I doubt you'll get many flames.
Make your own choice, but I don't think you'll be leading a revolution - there will always be a percentage of people that don't tip and always the majority who do tip.
Carnival Elation March 11
Carnival Imagination Sept 07
Carniival Sensation Dec 06
RCI Sovereign of the Seas Sept 06
Carnival Miracle Sept 05
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Carnival Fantasy Jan 04