I guess everything, do we need to get off the ship? Can we just stay in our Cabin? Are there any special arrangements for back to back, do we use the same room key, do they close our account and open a new one, etc.? Plus anything else anyone can think of that I haven't mentioned.
I apply in advance for a casino credit (marker). This way I know my budget for the cruise. Sadly, I've yet to not have to write a check at the end of the cruise!