The job was a living room, hallway, and part of a bedroom. The husband didn't think the carpet was that bad and didn't need cleaning. The wife wanted it cleaned because their 6 month old would be walking soon and she wanted clean carpet. They had used a rug doctor in the past but it was no longer touching the spots. There were drink spills, food, every kind of imaginable makeup, and who knows what else on that carpet. I didn't think I would get better than 50% improvement. I mixed my pre-spray double strength and added two ounces of a vent hood/smokehouse cleaner to my hydra-force and sprayed all three areas with the entire jug. I then scrubbed everything down with a deck brush. I finally extracted with my rotovac. The bedroom and hall came out great but the living room was still suspect. So I resprayed with my normal mix and scrubbed again, following up with another extraction with the rotovac. The lady was ecstatic and was texting photos to her husband. I joked with her that her husband may come home and think he had the wrong house. I charged her $200 for the cleaning and gave her a bid of $275 for the couch, loveseat, and chair which were in similar condition.