Yes Joanne you can! You don't even have to give them and extra tip for room service because it is in the tab anyway. <VBG> Seriously, the bar staff will be happy to bring you a drink, anywhere, anytime.
jcrandle, I like that! <G> Yes they will return it to you upon the completetion of the cruise. We never take any with us but we do buy some on the islands when it is unusal stuff or only something you can get there etc and when we bring it back on the ship they sometimes take it, especially when it is in store boxes or bags, and sometimes they don't bother. Now I can imagine that if one comes back half ripped and having a grand old time they would probably be more than a little sure that he checked his liquor at the door. <G>