Most important 5th. Wheel features for full timers

I've read through this topic and notice that very few mentioned a washer and dryer. What does everyone do with out these when staying in state parks or other such areas that have limited services?
I would think that the folks that move frequently would find a laundry but what about those that may work or volunteer in these state parks?

How much boondocking would you have to do before a generator is really required?

Thanks
Jim