This document provides tips for in-house SEO professionals to maximize their impact. It recommends using data to show the benefits of SEO work and spend SEO efforts wisely. Various techniques are presented such as checking robots.txt files, using tools like Screaming Frog to find issues like incorrect canonicals and redirects, and measuring growth over time to tell the SEO story and leverage successes. The overall message is to find and fix low hanging SEO issues and negotiate for SEO wins by knowing your data and facts.