What parts of your smoker do most of you clean, especially MES smokers, after you smoke? I mean the entire interior gets all gets grungy and all. Personally, I cleaned the racks a bit and the water pan only. The bottom drip pan was covered with foil and didn't get much goop on it. Is that about the extent to what you clean up as well?? And for those with MES's with windows, have you ever used a blade to just scrape off that gunk? Do you have any other way to clean that stuff off? Do ya' just leave it blackened?? Thanks in advance!