Proof that matches the surface
Driveway, siding, deck, and oil-stain labels stay attached to each shot. The packet reads like pressure washing work, not a generic photo gallery.
Chemical and dwell log
Record ratio notes, wet-plant proof, and dwell time as working field records.
Before and after pairs
Side-by-side proof is assembled locally before sharing.
Estimate memory
Similar jobs and materials history inform quote sanity without turning into an invoicing system.