Dan & Betsy,
You can expect to gain about 7 to 10 pounds from all the great food you will be eating.
You'll spend about $200.00 probably even more over 12 days, on photos, Carnival starts taking them even before you even get on the ship, plus every port you go to, each formal night, and the wife will insist on these, plus many candid shots taken through out the cruise. I must say that they are very good at taking pictures, I'm an amateur photographer myself and I admire the great shots they take.
You can run up a large bar tab if you not careful, mixed drinks are constantly offered where ever go throughout the ship.
You don't use cash on board, except in the casino,you use a card issued to you before you get on board, every thing you buy on board will be payable at the end of the cruise, it always surprises me how high this is at the end.
You can expect to meet nice people at dinner each night, everybody is happy and friendly on a cruise.
I was told to wear comfortable shoes as we will be doing a lot of walking.
I believe after this cruise you will get hooked on cruising, I know we are, how can we not have a great time with great countries we will be visiting, impossible.
It would be nice if others responed to this posting, I think many people stumble on to the site even though Carnival mentions it on their home page, we still have 6 weeks to go, I think we will hear from others.
Well take care for now
Fred & Jean