This document outlines tips and techniques used by penetration testers. It begins with an introduction explaining that penetration testing involves both standardized methodologies as well as improvisation. The document then provides several tips related to reconnaissance, scanning, networking, passwords, and reporting from penetration tests. Each tip is meant to help save time, enable hacks that otherwise wouldn't be possible, or better help clients understand security risks. Overall, the tips suggest using common tools and techniques creatively to find and exploit security vulnerabilities.