Seinfeld began his advice to Isaac with some common sense, noting the way to be a better comic was to create better jokes, and then explaining that the way to create better jokes was to write every day. Seinfeld continued by describing a specific technique he used to help maintain this discipline. He keeps a calendar on his wall. Every day that he writes jokes he crosses out the date on the calendar with a big red X. After a few days youll have a chain, Seinfeld said. Just keep at it and the chain will grow longer every day. Youll like seeing that chain, especially when you get a few weeks under your belt. Your only job next is to not break the chain. This chain method (as some now call it) soon became a hit among writers and fitness enthusiastscommunities that thrive on the ability to do hard things consistently.

Deep Work by Cal Newport