>>448420>>452911I use these almost exclusively for both at home and innawoods.
For the most part, I don't wash my at-home one in any particular way. It's usually used for cooking bacon about once a week, and then I'll later cook something like eggs and hashbrowns in the leftover bacon fat. I wipe out the residues of these things with a paper towel, but no water or anything. I used it to heat some tortillas today, maybe I'll make a sandwich tomorrow. The oil on the pan isn't going to rot or anything, and by the time I put any food on the pan again, it's far too hot for any pathogen to survive (that's the secret to cooking things like pancakes and eggs on these pans: make sure the pan is piping hot before putting these things on).
Outdoors, or if I'm making some sort of liquid item, such as a sauce, I just fill the pot with water, let it boil for a bit, and wipe out any remaining residue. I don't think sand or dirt would really hurt these pans, you just shouldn't use soap of any kind.
Anyhoo, my non-essential-essential, is good leather gloves. I've seen the little camp potholders, the dutch-oven-openers, etc,. but in terms of weight and variety of uses, I'll easily carry a pair of these.