Of course, I'm writing this from a male perspective, so I recognize that women may wish to pack more in the way of toiletries and makeup. Usually, it's not a problem to find room for one or two extra items with this system. And believe me, it's so worthwhile to avoid the hassles of checking bags, lugging around extra suitcases, and the added insult of the airline charging you for the privilege!
One final hint: If you have room, pack an extra empty bag, preferably a backpack, if you have room. It's always helpful to have a day pack with you when you are heading to the beach or on an excursion, and you can also use this bag to pack any gifts, liquor, or other souvenirs you pick up in the islands. Even if that leaves you with three bags for the flight home, you can check one, put one in the overhead bin, put the third under the seat, and still avoid the $25 excess baggage fee now being charged by most airlines.
