Back in 2014, my colleague Stephen Lease was a key player on the team that did the rebranding for GTD and the David Allen Company. After that, Stephen, relentless runner and all-around athlete, moved on to start a company called goodr that makes fun and functional sunglasses especially for runners. He recently did a podcast about how they run goodr with GTD. They have made GTD a key to their culture, which also includes creativity, humor, and leading-edge company values.
Have a listen (39 minutes).
Have a listen (39 minutes).