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 BowieBut I've got to think of myself as the luckiest guy. Robert Johnson only had one album's worth of work as his legacy. That's all that life allowed him.
David Bowie