Woo hoo! WordPlay, the weekend project I built years ago (it's a Wordle-style game, but fixes things I was irritated by) just hit a major milestone. 250 million games have been played. I've added no new features in over 2 years. The site still gets 10,000+ daily users. Lesson from this: It's OK to do what's fun that stretches your brain in different ways. I learned a ton from working on this (my first game and consumer app).