Uh, I used Quora's embed code above for the first time and am not sure what my reader will see when this is published. For that reason, here are a few of the examples given:
Will Self uses a wall of Post-It notes to plan and structure his writing.
Elmore Leonard writes on yellow legal pads.
Michel Faber corrected the first manuscript of The Crimson Petal and the White with house paint because he couldn't afford Tipp-Ex.
Gustav Hasford was a serial hoarder of very overdue library books, and had 10,000 of them in storage lockers.
Don DeLillo types each paragraph onto its own sheet of paper, so that he might concentrate better.
Gay Talese would pin pages of his writing to a wall and examine them from the other side of the room with binoculars.
Jonathan Safran Foer has a collection of blank sheets of paper.
Cormac McCarthy said that his perfect day is sitting in a room with some blank paper.