Part 2 Tent Camping
Bring air mattresses, sheets or sleeping bags on top of them and blankets, just in case it's chilly.
What about meals? Eating out or fixing at the site?
Bring items for showers, teeth, hair, etc.
Bring a TV and a 50' coaxial cable and you have cable TV.
Bring a cooler, (ice machines are at the Comfort Stations), snacks, paper towels, paper plates, utensils, etc., broom for keeping tent clean, small rug for tent entrance, ground cover for under tent, etc.
Also, flashlight and lights for the site.
If you bring a couple of extention cords, at least 25', the type rated for outdoor use, they are usually orange, you can hookup a small fridge, microwave, toaster, TV, etc. You'll have 4 seperate plugs to use at the electrical post. It can really make things very nice.
There's a picnic table and grill at every site so maybe a dining fly or screen room, charcoal, matches, etc.
It really depends on what degree of tent camping your shooting for, semi-roughing it, semi-luxury or luxury.
Check out the thread that shows some awesome tent setups for more ideas.
Good luck and enjoy your trip.