There is just so much you'll learn about on these boards, keep on reading thru them every day. My most helpful thing I read on here tho was about back packs. We each wore one filled with bottled waters (or you can carry sodas)on board. Once in our cabin we put them in the fridge and used the backpacks on port days with our things we'd need for the day and always carried a couple of the bottles of water.They came in very handy also for the stuff we bought when shopping at the different ports.
Another thing about port days for us was we always wore our swimsuits and cover-ups, it works just fine if your excursion includes any type water activity.
have a great time~~~~