Creative people tend to nest: a writer in their home office, a woodworker in their shop, an artist in their studio — full of work surfaces like desks and drafting tables, drawers and pegboards full of tools, pinboards, scraps of paper, and more. They are messy, informal, mixed together, freeform, and personal. Compare this to the neatly-sorted lists and grids of files, notes, and photos on our computer. A thinking tool should try to capture some of the informal, mixed-up, and personal nature of our physical workspaces.