Advice on Yellowstone

We just returned from there last week. We stayed at Bridge Bay campground just 3 miles south of Fishing Bridge. Make sure you ask for a site in the wooded area, much of it is very open. No services except a dump station and flush toilet bathrooms. Showers are available at Fishing Bridge. To prevent filling the tanks, we took showers by using the outside shower. We never filled either tank, or used up our 60 gallons of water in 5 nights there (it was really close though!)but we were water stingy. They have double wide sites that can fit larger campers. Ours is 33' long. They allow fires and we had several nice ones. Water is easily available to refill your tanks and the dump station is right outside the campground. We carry 3 batteries, one gets recharged by being hooked to the truck while driving around during the day. We went 8 days in a row,5 at Yellowstone and 3 at Glacier and had ample power all the time. We even watched movies on a 40" LED TV during a few rainy nights. No need to haul a generator, and no noise either.