Second, I am a proponent of “good enough” investing. What I am saying here is that it is very difficult to achieve optimal results, and that if you try too hard to achieve optimal results, it is likely that you will do worse than good enough results. The demands of perfection kill. Size your goals to what is humanly possible. My methods allow me to sleep at night. My methods allow me to step away from my computer, and spend time analyzing what really might matter. I can go visit clients and not worry that something is going to blow up on me.
David Merkel, The Aleph Blog