Someone in another post asked if the cruiselines provided enough hangers. Yes they do, as many as you want.
However, we each use a rolling duffel and I pack a lot of my clothes on wire hangers. I lay the pieces on the bed, each on top of the other and each on a hanger. I lay slacks and skirts inbetween shirts. I then fold the sleeves toward the center. Then, starting from the bottom, I roll everything up toward the hanger and place the entire bundle in my duffel. Once we're on the ship I take the bundle out, unroll it and hang everything up.
If you make sure everything is layed out flat in the first place, you'll have very few wrinkles. Place the items most likely to wrinkle on the bottom so they wind up on the outside of the bundle. If some sleeves are especially prone to wrinkle, stuff them with socks and other lingere'. Using this method, we are able to unpack in about 10 minutes. I also take a couple of Space Bags so I have something to seal the dirty clothes into.
I do something similar. I hang any good clothes, including those for formal night on plastic hangers, fold over and put them flat in my suitcase. I prefer plastic because the wireones can poke holes in stuff. But, having things on hangers definitely does make unpacking a lot easier. I never use space bags because I need those dirty clothes at the end to pad my souvenirs. Plus, I don't take a lot of clothes or shoes, I used to overpack clothes, but grew out of it....and out of some of the clothes!
LAY YOUR CLOTHES OUT AND PUT BAG OVER THEN ROLLOR FOLD AS YOU NORMALLY WOULD PUT BAG BETWEEN LAYERS FOR EXTRA PROTECTION i LEAVE SHIRTS AND BLOUSES RIGHTON THEIR HANGERS THEN PULL A BAG OVER AND THEY ARE READY TO HANG ON THE SHIP