I just learned this new today thanks to a couple of YouTube posters. You now need a credit or debit card to do laundry in the comfort stations so I asked what do Canadians do if they don't want or can't do this. They went to Guest Services who advised they sell "laundry cards" for $7.00 US. This covers the cost of one load ($1 detergent, $3 washer, $3 dryer).