DH was in the Navy for over 20 years, but I think what he learned best was how to stow stuff just so he could stow more stuff;) And when he finally left his last ship I could not believe how much stuff he had to bring home:E
But he does worry about weight in the camper. We don't carry any of the cast iron cookware or the all wood furniture required for reenacting. Everything is aluminum and lightweight.
Setting up a MH is faster and easier than the A-tent, so we are spoiled there. Yes, we carry a lot: DH wants enough food to feed a ship's crew, snack goodies, you gotta have enough beer/wine. But we don't pack a lot of clothes...but tons of dvd's for the TV (only one) and cd's for our soundtrack:)
When we set up the outside living area (because we prefer sitting outside a lot!), it all depends: at a bluegrass event we figure we'll be up at the site so don't set out much...just a couple chairs on the mat (trying to keep dirt out of the camper) and a table and of course the awning with lights. Otherwise it's mostly the mat, chairs, small tables, the stereo, awning out with lights, tablecloth on the picnic table if we have one, the cooler. When it's time to cook, the gas grill comes out or we use whatever the campsite has. The coffeepot can come out, but mostly in the morning. There may be some reading material, a large bowl for snacks...
Thanks to our reenacting experiences, we can set up and break down pretty quickly and easily, whether tenting or RVing:)