I work for a janitorial supply company and can get a good extractor for a good price. I have been reading that alot of you are using steamers to clean carpet. How does this work exactly? What is the process? Are you steaming a section then wiping it down? Or are you steaming and then vacuuming the carpet? Trying to decide if maybe I should go for the steamer instead since there are so many other things it can be used for.