When we are "out" for more than just a week-end, we always plan a laundry day (or 2 depending upon how long we are out.) We depend upon campground facilities to have a laundry room. So, if traveling and just need an over night, we plan a KOA or a Good Sam campground because they always have laundry rooms. We carry a BUNCH of quarters in the camper all the time, just for laundry. We have a buffalo "piggy" bank stuffed full of nothing but quarters. Just a guess, we probably have over $100 in quarters in that buffalo. We use it exclusively for laundry. Plan ahead at one of your overnight stops. Campground facilities are there to make it convenient for you.