After eighteen years of wear and tear on our living room carpeting, and having a dog for 15 of those years, we are replacing the carpeting with hardwood flooring. It was started this morning and should be completed by day's end on Friday. I am quite excited. If I had my way, we would have hardwood flooring throughout our entire home. It is dog friendlier, and it makes life easier for allergy sufferers. Husband and I, both, are the latter. I was anxious to observe and see if my dog had been using the carpeting in any places that we were unaware of for the purpose of elimination, so I watched as the carpeting was removed, and next the padding. I was really thrilled to see that he had not. There was no stain, not even one on the padding beneath, or on the subflooring. I know he had tinkled on it a couple of times when he was a puppy and at least once that I knew of since then. We were always quick to soak it up, then neutralize it with white vinegar and water, and then completely soak that up with dry towels. It has always worked beautifully and inexpensively. Of course, we would get it professionally steam cleaned on a quite regular basis, too. Now we know we have an obedient dog to the tenth degree. You go, Sprout!!!!!