How And Where Do You Do Your Laundry?

As full-timers we carry all of our clothes so we have plenty to get us through two weeks. We purposely ordered our motorhome without a washer/dryer - wanted the storage space instead and didn't want to bother doing laundry every day and a requisite would be to have a sewer hookup. We stay in public parks with no hookups. We go into town and always find a laundry. We do our 2-weeks' worth of laundry in a 2-hour time and then do other errands in town. It's not a big deal for us...we just want it done all at one time.