TIL a customer's complaint about black streaks changed my whole brushing routine
I had this one house I clean twice a year, older place with a big fireplace. Last spring the owner called me out saying I was leaving black marks on her slate hearth. I thought she was crazy at first, figured it was just creosote dust. But she showed me a photo zoomed in and yeah, there it was. Turns out I was brushing too fast and not letting the soot settle before I moved the brush out. Now I slow way down on the final passes and give it a few seconds. Haven't had a complaint since. Anyone else get feedback like that that made you rethink a basic move?