Also known as the 'Jerry Seinfeld Method', the Don't Break The Chain approach is a much-loved productivity hack to help overcome procrastination and assist with the completion of goals.
The premise is super simple - mark an 'X' on a calendar the first time that you do something. Do the same the day after, and again on the third day. You'll see a chain of X's begin to form - and now your motivation is to make sure that under no circumstances do you allow the chain to break.