On this episode of the Process Breakdown Podcast, David Allen, who is the world-renowned author of the Getting Things Done (GTD®) books series talks in-depth about how he created systems to increase his productivity: by using these systems to clear his mind and arrange things he needed to do in an order of highest priority to lowest, and by doing this, accomplishing more tasks with ease and improving efficiency.
https://www.sweetprocess.com/how-to-clear-your-mind-with-david-allen/
David Allen also talks about how he began his career as a consultant, how he remodeled and improved businesses using the systems he has created.