Rob Cairns, founder of Stunning Digital Marketing, shares ten lessons learned from creating over 500 episodes of his podcast, "The SDM Show." Key takeaways include the importance of consistency, incorporating emotion, utilizing video, and efficient pre-recording techniques. He emphasizes the value of continuous learning, collaboration with other podcasters, and pre-recording advertisements and dedications. Finally, Cairns highlights the unexpected benefit of securing free masterclasses from podcast guests. The podcast covers business, life, productivity, digital marketing, and WordPress.