Once again, Martha Mitchell, author of Gone with the Wind.
“I had every detail clear in my mind before I sat down at the typewriter,” she wrote later.
She wrote the last chapter first and then the rest of the chapters in any order. When the scene appealed to her, she wrote it.
When it came time to send it to the eager publisher, she stuffed the seventy chapters into manila envelops and mailed them all off.
I have tried using an outline, but my play was written with the last scene first and then not knowing how the play would get there, but writing one scene at a time, it just happened and the play really worked.