Dano

Hi, Leaving in a week on Oasis of the seas. I am not a big drinker and know I would just fall under the minium amount I would have to break even If I got the deluxe drink package. That said I don't like to wait for a drink when I order one. How are the drinks paid for if I don't get the package? Do they use the Card on file with the sea pass and you just present that, much like you do with the drink package? or is there the normal way of using a credit card or cash? Also when you pay per drink do they automatically add 18% gratiutity. Thank you in advance for responses. Dan