That is a GREAT idea!!! I would do that too. My family and myself all think that's a pretty big rip off when the cruise costs alot of money already. They should be able to provide sodas'! With that said though... we never got a mug and we found that there were always places to get drinks. First breakfast buffets that go till around 11 then its straight into lunch where there's punch and coffee... That will go till two or so (my times may be a bit off!) then another buffet starts at topsiders! In addition there is always that little stand with tea, hot chocolate, milk, etc. But if you do want a mug I would totally go with the idea of one mug and sharing it or using plastic cups! When the cost is 35 bucks for seven days and your drinking at all meals it can make you feel like you must get your moneys worth and end up drinking way too much soda! lol. What ever you decide have a magical cruise!!!!
Alberta