A good piece of advice lukeprog gave me is to structure your story around an emotional arc. E.g. a story about an awesome show you went to is also a story about what you felt before, during, and after the show. A story about the life-cycle of a psychoactive parasite is also a story about a conflict between the clever parasite and the tragic host; or a story about your feelings of fascination and horror when you first learned about the parasite.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.