What accumulates without being written down
Over a couple of years a site develops a set of practices that exist nowhere on paper. The back door sticks and needs a particular knack. One office is never entered because the occupant prefers it that way. The bins go out on Tuesday because that is when the store is emptied. The alarm has a delay that catches people out. None of it is complicated and all of it is invisible to a relief cleaner.
Individually these things are trivial. Collectively they are the difference between a covered week that passes without comment and one that generates a complaint every morning. The regular cleaner absorbs them so completely over time that they no longer register as instructions at all, which is precisely why they never make it into the schedule unless somebody deliberately sits down and asks.
