I don't have a list of fees but DH has had some things laundered by housekeeping during conventions. It's not cheap, but it isn't at any hotel. He paid around $55 for 2 dress shirts, 2 pair of dress pants, a pair of shorts & a casual shirt. I don't know if that included a tip or not, he doesn't remember!
If you're interesed in doing it yourself, like LaurenT said, they have a very large, very nice laundry room on the 1st floor. I've used it many times, and have gone out to the pool while it runs.