I'm not a big drinker but I did have 3-4 drinks a day on the cruise be it liquor or water (almost as much as a drink refill $3), I bought some photos, my post-cruise excursion in Miami which I loved, a few photos and some liquor (a great deal on ships and better than in port) and I spent around $400 including port souvenirs and non ship excursions. Carnival Imagination May 4th (just a four-nighter). I'd budget a minimum of $500 if you have a full week cruise. The more ports you're stopping at increases the spending... Be sure you read all the helpful hints that you'll find on cruisemates. The more you do your homework, the better your cruise will be. When is your cruise and where are you going?