Thanks, all, I would have posted this note of appreciation sooner but I just now found your replies. Apparently this forum doesn't alert you every time a new reply is posted. Only after the first one. So I thought no one but Crabman cared
These are great ideas, every one of them.
This will be my umpteenth trip to Yellowstone and my third stay in this campground in April-May, so I'll be on familiar ground (but off the cold ground!).
I'm leaning toward completely dry camping this time, so I don't freeze-crack any fittings. The temps could be 20's or lower; when I was there in 2014, one morning it was 9.
So I'll carry water in 1-gal jugs from the spigot as needed. I (and the dog, who seems to be all bladder) can make it through the night without a bathroom run ... and I get up really early to photograph wildlife anyway.
What I'm truly looking forward to is having a place that is warm and has an indoor kitchen to come home to every night. What luxury!
I definitely will take a shakedown trip to a nearby CG before I head out to the wild. I will also practice backing up.
A generator for battery charging and electric heat is an interesting idea. Can anyone suggest a smallish one of good repute? Are they easier to pull-start than my lawnmower?