I won't go camping without a foam pad to sleep on - I think an air mattress is too much trouble, and not that comfortable. Roll-up foam pads insulate you from the ground (good in both hot/cold weather) and eliminate discomfort caused by that rock or stick that ALWAYS manages to get left under the tent when you set it up.
I cook most camp meals in a big cast-iron frying pan - its perfect for most meals, especially eggs/bacon breakfast and steak/fried potato suppers (My favorites!).
Don't forget the toliet paper.