You walk into a second hand shop in Zadar, and the first thing you notice is the smell. Musty. A mix of old wood, detergent residue, and decades of someone else’s life. The racks are packed tight. Nothing is organized by size. You dig through a pile of polyester shirts from the 90s, and then your fingers hit something good. A heavy wool blazer. Italian label. 25 kuna. That’s about $3.50. That moment — the find — is why people bother. Zadar has a solid second hand scene, but it’s not obvious to visitors. Most tourists stick to the Old…