Nailing the heels from the inside with a nice new set of nails. Old ones always rust out because of the moisture that seeps in from the inside of the shoe. If you don't like your shoemaker, you can wear really warm socks in the summer so your feet sweat a lot and then in the fall you can ask him to do a resole. They'll be so rusty that they'll break when he tries to get them out. Don't blame me if you find a surprise in your shoe, though.