Improve Oak Floors that Can't be Sanded any more
My very old oak hardwood floors can no longer be sanded (too many times). I found a series of stores on web called Mr. Sandless but feedback is awful on them. I have black on my floors - probably dirt. I know I can't get them to be beautiful but what could I do to freshen them up. I'm not in a position to replace them and can't use rugs.
Thank for any advise.