A couple of weeks ago I asked for recommendations for removing a bad coffee stain from new carpeting. Starting with the easiest first, since I use OxyClean, I got a spray bottle and, following the instructions in the tub, treated the carpeting.
Thank you all. The OxyClean did the trick, and the owner of the carpeting says that he is indebted to me forever. That, and a lot of quarters will buy me a cup of coffee, right?