As for underwear and socks, wash them out in a campground sink every couple of days. Hat, boots and a light raincoat is always a plus. Personal gear - flashlight, pocket knife, small backpack, water bottle, small compass. Facilities in the parks are minimal.
English muffins are good for breakfast and mini-pizzas.
Store shelves overflow with all sorts of pre-packaged foods that are easy to make when you're camping. Consider the bottles of squeeze margarine rather than sticks. Restrictions on firewood and burning are very tight in the parks and recreational areas. Moab is surrounded by parks and National Forests. To the Southeast, the wooded peaks of the La Sal mountains hold several Forest Service campsites, as well as a lot of roadside pull-offs used as unofficial campsites.