Completing my packing and driving out in the morning for our cruise on Monday. I read that Carnival encourages only 2 checked bags. Is there a limit to the number of carry-on bags a person can take? I plan on having a backpack and a medium duffel bag as carry-ons. I have been packing and repacking for a week now. I feel like a kid going to camp for the first time. Can't wait!!!!!