Next question: I’ve used a pre-paid credit card from my bank to set up our onboard account. Should $500 be enough since we don’t drink?
If you are doing excursions, check to see if they will put you near the limit. Tips will be charged too. For just onboard expenses that will be plenty. Way plenty.
BTW, about credit cards, be sure to tell your credit card company where you will be so you don’t get it turned off.