There's a nice extension to this idea - maybe someone can reply with the right credit as I've forgotten where I read this: When the five things are done, you a

There's a nice extension to this idea - maybe someone can reply with the right credit as I've forgotten where I read this: When the five things are done, you are done. Leisure or family time. Even if you had a little juice left today, you keep some in the tank for the other parts of your life. This really helps with steady productivity and headspace for the long term.