Here is another note on the use of the best systems.
Keep. Them. Simple.
The simpler something is, the easier it is to follow, after all.
Optimizing is often the strategy of people who have specific goals and feel the need to do everything in their power to achieve them. Simplifying is generally the strategy of people who view the world in terms of systems. The best systems are simple, and for good reason. Complicated systems have more opportunities for failure.
-Scott Adams, How To Fail At Almost Everything And Still Win Big