One positive of the march out regime was that it took the fear out of deep cleaning. I got £12.5k off the price of my first house as it was in such a disgusting state that it put buyers off. (No smell of fresh baked bread but plenty of smells) It took my wife and I a week of concentrated elbow grease, including "flea bombs" and it came up like a new pin. Retrospective thanks to some of the total a#*#h*#*s I met on too many march outs to list.