Are you looking to implement this system using a like Todoist, or do you prefer a paper-based method?

Only give a task a deadline if it actually has one. Artificial deadlines create unnecessary stress and lead to "deadline desensitization."

Group tasks by location, tools needed, or energy levels (e.g., "Calls," "Computer Work," or "Errands"). This prevents the mental "switching cost" of jumping between different types of work.

The "Formula" is ultimately about reducing friction. By pre-deciding what matters most, you eliminate the need to make choices during your peak productivity hours. Zahariades argues that a well-maintained list provides a "closed loop" for the brain, reducing the Zeigarnik Effect (the tendency to remember uncompleted tasks), which in turn lowers anxiety and improves focus. Conclusion