nunyabidness

While we're on the topic, some Caribbean and Central American ports definitely have sniffer dogs when you get off the ship. On my last umpteenth stops in Cozumel they've been there, and passengers are required to lower any bags to the dogs' level so they can smell them. On some lower tier cruise lines (e.g. Carnival) it's shocking to see the amount of food, especially whole fruit, piled in the trash cans or on the tables after it's been found by the sniffer dogs.

Same on Caribbean in January.

Princess obviously won't upgrade you to a cabin that doesn't sleep the number of people in your current cabin. Just be aware that needing a cabin for 4 will decrease your odds of a successful upgrade to some categories.

Same here.

The cage manager supervises the cage/cashiers and has nothing to do with accumulating points on slots. Notwithstanding, if the functionality isn't there to accumulate points on more than one machine at a time, there's nothing the casino manager/supervisor/host or slot technician can do.

If your frequent flyer number is on your EZAir booking, the flight(s) will show in your upcoming reservations on the airline's app or website, whether the reservation is ticketed or not.

It's completely dependent on what's available in the ports where they provision the ships. It's not uncommon to get different brands from different bars on a sailing, or even different brands from the same bar throughout a sailing. I was on Regal last summer for 2 weeks of the 3-week rotation (Barcelona-Rome-Athens), and over those 2 weeks I got Spanish, Italian, and Greek water that had been provisioned in all 3 turnaround ports.