What he does is draws up a calendar of boxes, each box represents a day he has to write, once he writes a joke that day, he can put a cross through it, after a while his job becomes trying to extend that daisy chain of boxes because you don’t want to break it.
He’s gamified his own writing! By focusing on extending the chain, not the writing, he’s sidestepped the all too common writers block. Nice hack.
Reminded of this whilst reading Steal Like an Artist. More on Seinfelds hack here.