This is a time when you actually get something FREE at WDW! DVC resorts have laundry rooms which are free. I don't know exactly where the one for VWL is, but I'm sure someone will be along with that info.
As you enter into the VWL, go in the sliders, turn to the left and loop past the elevators. Walk down the hall and it is a room on the right side it will have a sign.
The machines look as if you need money and they have a changer in the room (bills to coins) but they are FREE! Last March they had only 2 washers a top loader and a front loader. Then there were about 4 dryers! I think the changer may be if you need to buy soap.