I try not to write more than two or three, I try to just write one if possible, I write till the end at least a draft of a play or a novel; but sometimes, I'll take a break for a couple weeks for a project that is paying me money like a television project which I try to stay away from just to stay financially ahead of the game.
Agassiz does recommend authors to eat fish, because the phosphorus in it makes brains. But I cannot help you to a decision about the amount you need to eat. Perhaps a couple of whales would be enough.
One thing I love to do is produce. I've produced a couple of bands. I mean, nothing ever really happened with 'em, but I enjoy getting a young band into the studio and guiding them, and making them feel at ease.
When you screen it the first couple times, you're just trying to get the movie to work, trying to get the story to flow, trying to find out where your areas are where you have enough breath to laugh a little bit. So you're doing that the first two or three screenings, and then finally, you dial the movie in and it's working, and at that point, it's 50/50 as far as what's funny and what's working. Sometimes you'll put something in and it will just die so hard that it'll almost kill the movie.