First let me say I have an OCD about laundry sorting. My wash loads can be pathetically small, even in our home washer and dryer.
On some of our trips we drive tag team non-stop for a couple of days, stopping only for fuel, meals, and to let the new driver wake up and have some coffee. So there will be some dirty laundry when we finally get to full hookups. If we overnight and have water/sewer, I like to do several loads, removing each load after the wash cycle, and putting them into plastic shopping bags. I fill each bag with the largest size load I want to dry at one time, with like items that I dry together. I dry everything on the coolest temp possible so I can usually combine some of the washed loads in the dryer. I do the towels last and I let them go right through the dry cycle. So there may be towels drying when we hit the road again.
We do our longer road trips in the summer so our gen is already running. Then when we do our first stop I fold the towels and put another wet load in to dry. I start drying another load each time we stop. Some clothes only need a little bit of dry time, and I will let those dry when we stop for meals, then hang/fold before we get back on the road.
DH wanted a washer/dryer when we had a smaller RV but there was no place for it. When we got one with the w/d cabinet and hookups I loved the extra storage and didn't want to give it up. But the more he talked about the Splendide, the better it sounded. Now that we have it I love it! Not only can we pack fewer of DH's clothes, we don't have to make room to store 2 week's worth of dirty clothes and smelly wet towels or waste precious vaca time waiting at coin-op laundries. I do 1 or 2 small loads each day when we are parked for several days.
Did I already say I love having the washer/dryer? Then I'll say it again... I love it!