We always bring DH suit and have it cleaned and pressed for formal night the next night. Never had a problem getting it back on time. The last cruise we had to pay extra for Express for some reason but that was only a couple extra $. We also had some pants pressed. As soon as you get in your cabin, put the items in the laudry bag and fill out the form. If your cabin steward is around, he will take it right away. If not, leave it on the bed and he will get it soon.
Teresa and Larry
#36-Carnival Splendor 9/16/12
7 night Mexican Riviera
#37-Allure of the Seas 11/11/12
7 night Eastern Caribbean