I'm replacing carpets, and the existing foam underlay has stuck to the concrete floor... so I'm looking for an easy way to remove it. I'm already familiar with the "crawl around on the floor with a scraper for several days" technique, I was hoping that somebody may be able to offer something more, well... easy Something magical, along the lines of "soak the floor in a mixture of white wine vinegar, rhubarb juiceand the leaves of certain rare herbs, which will completely unstick the whole carpet, and roll it up in the corner, ready for disposal", would be perfect.... Or somewhere between the two extremes would be welcome, too... Any ideas, anyone?