Thanks everyone!! We've done two carnivals in the past but it wasn't until we did an NCL cruise that we picked up on bringing beer back on board for my husband.
I will add a comment though - we took a cruise out of NY on NCL's Spirit (by the way a refurbished ship, very very small accomodations) - In St. thomas I got the 5 bottles we were allowed and checked them in with the liquor police when we got back on board. They DID NOT deliver the box to our room the night before we had to go to a conference room to pick up the box. There were lines of people and the dummies didn't sort the boxes out by cabin number. How the heck do you find all your passengers stuff when it is strewn all over the floor?
And yes I understand the comments about giving the cruiselines money. Trust me, even with sneaking some in luggage and bringing beer back on at ports, the cruiseline industry still considers us a great customer!