A small 3-ring binder, plus packets of hole-punched graph paper. Extremely cheap. The beauty of the binder is that it allows for easily rearranging pages, somet

A small 3-ring binder, plus packets of hole-punched graph paper. Extremely cheap. The beauty of the binder is that it allows for easily rearranging pages, something notebooks do not. Thanks to Lion Kimbro for this advice. https://users.speakeasy.net/~lion/nb/book.pdf https://users.speakeasy.net/~lion/nb/book.pdf