Last time we stayed at Riverside I took the laundry to the pool while my husband and daughter napped, popped it in the washer and sat around the pool with a beer until they woke up and came to join
We are a family of 6 (actually 7 now that DD is married) and I always do laundry on our Disney trips. We usually stay 8-10 nights and I dont want to pack that many clothes for all of us.
We also would do the laundry while the kids swam at the pool. On our trip in 2010, we had our 4 kids plus 3 extra as well as DH and I. I did laundry every 2-3 days (10 day trip). I couldnt stand to keep it washed up with that many people.
We stayed at Bonnet Creek on our trip last year and I loved having that washer and dryer right in the room. I did a load of clothes every night after everyone showered. We never had dirty duds Some people don't want a w/d on vacation, but for this Mama of 5...it is a blessing!