Do you have one of those major credit cards that offer a variety of perks specifically geared for traveling, such as frequent flier miles or reward points for staying at certain hotels? Now would be the best time to cash those in. Look at your credit card programs and see if there’s anything that can be of use to you, pre-honeymoon.
Also, figure out how you will pay your expenses while there: cash, traveler's check, credit card. If you do use a credit card abroad, use one that offers perks for international travelers, such as no-fee foreign transactions.