Research cruise ports on TripAdvisor or Cruise Critic
Figure out transportation on shore
Book shore excursions
Pack a carry on bag - medications, government issued photo ID, passports, boarding passes, swimsuits, swimsuit cover up, sunscreen. sunglasses, hat, camera, change of clothes for dinner, valuable electronics and jewelry
Attach luggage tags to all of your bags
Take a picture of your bags for easy identification
Carry on size bags that fit through the x-ray scanner can usually be carried on if you wish.
Fill out any boarding paperwork prior to departure
Tip baggage handler
Board the ship
Take pictures around the cruise ship
Grab lunch on board
Set a consistent dinner time with the Maitre D'
Ensure you are happy with your dinner table location and size