There is free washers/dryers for DVC members at BCV. I believe they are on the 4th ot 5th floor of the building.
There is only one laundry room for the whole BCV and it has 2-3 washers and dryers. Soap is $1
We use it everytime, best bet is to do one day you are in your room or at the quiet pool. You have to monitor your stuff and not leave it for long periods unattended.
It's hit or miss, some days it's very busy and some days you have the room to yourself.
I have a similar question about my stay there in a couple weeks. I think I'll just hand wash some things in the sink. There'll just be DH and myself-if there were more, I might consider doing laundry.