One warning about the space bags....after you "squish" everything and fill your suitcase, weigh it...it's very easy to be go over your limit thanks to these space savers. You may actually be able to use a smaller bag and still be at the allowable weight.
Luggage designers plan for an average weight in a certain space, the bags seem to change that formula.
P.S. At the end of your cruise, you'll have to ask your room steward to "vacumn" your packing! LOL
