Some things you need to know:

a passport is recommended but you can bring a government photo ID and a official birth certificate.  Once you come to the ship if you dont have the right documents they will not let you on the boat.  You can find more information out at carnival.com or call 1-800-764-7419.

Soda is not included.  You can purchase a soda card on the ship, fee vary from ship to ship, or you can bring one 12 pack soda with you on the ship. 

Water is avalible on the ship, however if you like bottled water you can purchase it through the website or 800#.  You are not aloud to bring any water on board with you.  

Your baggage will be taken from you at the port and delivered to your room!  Please make sure you carry your medications and valuables in your carry on luggage.

You will need to pre-print your boarding tags and passes. Please go to carnival.com to make sure you put all of the correct information.  

They will ask you how you would like to set up your "sail and sign acct".   The sail and sign account is set up at the port with your picture and a payment source. Basically anything you buy on board you will "charged" on your sail and sign account.   They will not take cash or card on the ship.  If you have anyquestions, call us or call carnival.  

Most of the ports accept american money so there is no need to get foriegn currency or travelers cheques.  If you have a capital one card they will do the exchange rate for free, but any credit cards you plan on using outside the continental US, you will need to call them and let them know you are travelling so they can allow your card to be used.  

There are lots of question/answer online at carnival.com.