Cue cards? But I don't dictate my stories on stage...
Sometimes, when I can't create a stable plot line and need the visual and physical reference, I lay them out.
Mostly, arrange flash cards from how they would appear in the book, each card as scene/chapter, with one sentence telling me what its about and notes underneath--then I start guessing word count and add it all up.
After I have that sorted out, I open Scrivener and copy the cards over.
Then to writing.