I am the messiest (sp) person in the world
I bet I could hold my own with you on everything but my cookers and my tools. I do scrub up the cooking grates if they've got crap hanging off of them. The inside of the cooker I understand should be left alone, that I can do. If the grates don't have sauce or marinade gooped all over them I just use a piece of crumpled foil held in the tongs and give 'em a quick scrub after they've warmed up just before I put the meat on. Saw some yahoo on tv do it, I tried it and it works real well, especially on the stainless grates on the gas grill.