Just got back from a four day Wonder and I spent alot of money!! Husband and I are both drinkers, that's where the bulk of our money was spent. If you are too, bring it with you and you'll save a ton! We (family of four) spent over $800 on drinks, mugs, arcade cards, spa treatment (unlimited rainforest visits for $45...I only went once. There just wasn't enough time to go more than that) and souviners. My advice is to take twice as much as you think you will need. This did not include excursions but did include an onboard credit of $250. Hope this helps.