Alas, my favorite shoes that I wear every day have developed some major cracks in their soles. I really should stop using my foot to push in the oven rack at work. We use a walk-in oven that you can fit a whole cookie rack in, and I often push it in the oven by pushing the top in with two hot mitts, and the bottom with my boot...Only I could kill a pair of Doc Martins. I think I'll get myself a new pair for Christmas, and rethink the way I push in the oven rack so they'll last more than 9 months.