This document discusses organizing used bicycle parts in a DIY bicycle shop. It notes that parts often come in incomplete, worn, or damaged, and volunteers sorting the parts may not have extensive bicycle knowledge. This can result in unusable parts being mixed with good parts. The document proposes using "Part Guide Cards" to provide explanatory text, diagrams, and checklists to help evaluate parts and identify variables that affect compatibility and fit. These cards would be placed near the relevant parts to help customers and volunteers sort parts properly. Other ideas include attaching example parts or pictures to bins to identify their contents. The goal is to make key information readily available to help avoid wasted time and ensure customers can find the parts they need.