You write down a paragraph or two describing several different subjects creating a kind of story ingredients-list, I suppose, and then cut the sentences into four or five-word sections; mix em up and reconnect them. You can get some pretty interesting idea combinations like this. You can use them as is or, if you have a craven need to not lose control, bounce off these ideas and write whole new sections.
David BowieActually, my ambition at eight or nine years old was to be one of Little Richard's sax players, and that's when I got my first saxophone, a Selmer. It was a strange Bakelite material - that creamy plastic with all the gold keys on it. I had to get a job as a butcher's delivery boy to start paying for it.
David Bowie