Clothing - 1 or 2 sets "nice" wash n wear. 2 weeks undershorts. Mix T shirts and undershirts to match what kind of weather we expect. Ditto shorts and jeans. Match socks mix to pant mix as in footies vs socks. Always have at least one pair each of shorts, jeans, sweat pants. Shirts as expected, again always a couple along other than the "nice" ones. Sun block, cool evening, bugs, whatever. Sweatshirt and vest, jacket if needed, rain jacket that can serve as a windbreaker. Couple different hats. I also pack some medium weight fleece as it can layer when cold or wet. Expect to do laundry every 7-8 days. Can stretch a bit if needed or change more often if needed. That also includes what we are wearing when leaving town. The cool weather gear might be what we need the first day or two getting out of here. ;-)
We cook in the camper like we cook at home. Always try to have a couple of quick meals in the freezer for long days and fresh food as needed. We tend to make 2 or 3 smaller casseroles at a time and freeze the extras. Put steak in a baggy with marinade and let it thaw that way. Restaurant meals add too much cost and bad food to our diets so we limit them to one or two a week, often lunch. Quiet days we might have a hot breakfast while days we are in a hurry it's cold cereal. Not all that magic. We also check the gourmet prepared food shops or sections of the grocery store. Have found some good things that way and we control the portions and sides. We also carry and use a small gas grill. It's not all that hard to eat well with a minimum of cooking and prep. Figure smaller sizes for staples usually in a plastic container and a required stop at a grocery every 3 days or so.