“Comedian Jerry Seinfeld advised aspiring comedian Brad Isaac that, because daily writing was the key to writing better jokes, Isaac should buy a calendar with a box for every day of the year, and every day, after writing, cross off the day with a big red X. “After a few days you’ll have a chain,” Seinfeld explained. “You’ll like seeing that chain, especially when you get a few weeks under your belt. Your only job next is to not break the chain.”