I really don't care about how the clothes come out anymore. I do try to pack to minimize the wrinkles. The first day, all that stuff goes in a bag and off to the ship's laundry for a pressing. The ones that are not too bad are taken to the laundry room (If the ship has one; not on RCI) for a quick self-press.
Best $20 - 40 that I spend on a cruise.
SS Norway (12 times) '85 - '97; Radiance OS 06/01; Island Princess 11/04, Grand Princess 11/04/05, Golden Princess 7/21/06, Golden Princess 2/24/07, Explorer of the Seas 12/23/07, Island Princess 11/15/08