Annotated The Creative Habit: Learn it and Use it for Life by Twyla Tharp and Mark ReiterTwyla Tharp and Mark Reiter (Simon & Schuster)

She puts the ideas together and tries to broker a deal for the conglomerate to acquire a radio network. At the end, she’s challenged to describe how she came up with the plan for the acquisition. It’s a telling scene. She has just been fired. On her way out of the building, with all her files and personal items packed in a box (a box just like mine!), she gets a chance to explain her thought process to the mogul:

See? This is Forbes. It’s just your basic article about how you were looking to expand into broadcasting. Right? Okay now. The same day—I’ll never forget this—I’m reading Page Six of the New York Post and there’s this item on Bobby Stein, the radio talk show guy who does all those gross jokes about Ethiopia and the Betty Ford Center. Well, anyway, he’s hosting this charity auction that night. Real bluebloods and won’t that be funny? Now I turn the page to Suzy who does the society stuff and there’s this picture of your daughter—see, nice picture—and she’s helping to organize the charity ball. So I started to think: Trask, Radio, Trask, Radio.... So now here we are.

He’s impressed and hires her on the spot. Forget the fairy-tale plot; as a demonstration of how to link A to B and come up with C, Working Girl is a primer in the art of scratching. 

The plot twist at the end of Working Girl (Twentieth Century Fox, 1988) turns on Tess McGill (Melanie Griffith) explaining her stroke of combinatorial creativity in coming up with a business pitch. Because she had juxtaposed several disparate ideas from the New York Post several pages from each other in a creative way, she got the job and Katharine Parker (Sigourney Weaver) is left embarrassed because she can’t explain how she came up with a complicated combination of ideas.

Tess McGill (portrayed by a big 80's haired Melanie Griffith) packing a brown banker's box with her office items and papers leaving her office and her job.
A Working Girl’s Zettelkasten

Tess McGill has slips of newspaper with ideas on them and a physical box to put them in.

slips with ideas + box = zettelkasten

Bonus points because she links her ideas, right?!