We supply our own hangers to the laundry and ask that our clothes be washed but NOT DRIED and hung back on the hangers supplied. I usually save up dry cleaner hangers which are so thin and take up no room in the suitcase. We make sure to tip our steward extra for this service as well as ask him to give an additional tip to the laundry. We have always done this with no problems. Our clothes are normally returned in the evening.
Any small or delicate items I hand wash and lay on top of the refrigerator to dry, it is nice and warm on top and does the job.