While writing Spicy-parsers for a few theretofore unsupported protocols, I learned much. Reflecting on the similarities, and the progressively better implementations, I realized others could benefit from my experience. I'll draw attention to the perhaps elusive value of a few of Spicy's more esoteric features. I'll cover general parser best-practices, and some which are simply good defensive-practices. But in this talk, the Overall theme is presenting ideas in context, to see how they are effectively utilized.