P.S. The stairway, scratching post and runway in our house were all designed and manufactured by The Hubby, using wood found around the house and donated by my brother, and flotsam and jetsam gathered over time. We keep tweaking things, like adding pieces of carpet to the steps, because the cats run so fast and were prone to slip. The son of a carpenter, The Hubby has mad skills, plus a basement and barn filled with tools, nails, hinges, drawer pulls, rope, old carpet beaters, doors, windows, cigar boxes of screws, staples, and every other whatnot and doohickey from the past sixty years. Seriously.