At this point in the process, the focus & action system has grown to include many components. To maintain and improve this system, I recommend that you add reminders and recurring tasks to your calendar.

Specifically, I recommend the following:

Once a week, spend 20-40 minutes reviewing your past week and clearing up the "Done" column in your personal productivity board.
At the start of each week, spend 15-30 minutes planning the week ahead. Review the "In" column in Trello and get tasks for the week ready in the "This Week" column.
Once a month, spend 20-45 minutes cleaning up your Trello boards. Clean up the "In" column, make sure priorities are set right and review your braindump board.
Once every quarter, review your Mantra Document. Make sure the statements still ring true and re-write if needed.
Once every quarter, review your Big Picture Goals and vision document. See if you're still on track towards your big goals and make additions or changes if needed.

I recommend starting with these recurring tasks and gradually adding more or changing the existing ones, as you get used to working with them.

Reminders & Recurring Tasks