There was a movie writer who always seemed to have his best ideas in the middle of the night, and when he woke up in the morning, he never remembered them. So one day the man had a brilliant idea. He said to himself, “I’ll put a paper and pencil beside my bed, and when I get the idea, I’ll write it down.” So he went to bed and, sure enough, in the middle of the night he awoke with a terrific idea. He wrote it down and went back to sleep. When he awoke, the next morning, he’d forgotten the whole thing, but all of a sudden, as he was shaving, he thought to himself, “Oh God, I had a terrific idea again last night, and now I’ve forgotten it. But wait, I had my paper and pencil; that’s right, I wrote it down!” So he rushed into the bedroom and picked up the note and read what he’d written: “Boy meets girl.”

— Alfred Hitchcock