The most underrated tool in B2B sales isn't a CRM, a dialer, or an AI assistant --- it's the summary email you send after every meeting. John Barrows, one of the most respected sales trainers in tech, makes the case that a well-crafted summary email does more to advance deals than most sellers realize. It's not just a courtesy --- it's a strategic document that aligns expectations, confirms mutual commitments, and creates a paper trail that prevents miscommunication down the line. John walks through exactly what belongs in a summary email (and what doesn't): a crisp recap of what was discussed, clear next steps with owners and deadlines, and a subtle but effective technique for surfacing objections that didn't come up during the meeting itself. He also covers timing --- why sending it within two hours matters --- and how to use the summary email as a natural opportunity to introduce additional stakeholders or resources that move the deal forward. If you're in complex, multi-stakeholder B2B sales, this is ten minutes that will permanently change how you follow up.