I have begun to use cheaper-and-cheaper notebooks. I started with Leuchtturm1917 notebooks, and... they're still great (I still buy on occasion as my "primary n

I have begun to use cheaper-and-cheaper notebooks. I started with Leuchtturm1917 notebooks, and... they're still great (I still buy on occasion as my "primary notebook"). But for cost-efficiency, I have other notebooks. Just composition books and wire-bound college notebooks for $1 or $2 at grocery stores and/or pharmacies. Just whatever cheap 70-page crap is around. ------ My cheap notebooks get one augmentation to make them comparable to the Leuchtturm1917: an automatic numbering machine (https://www.hittmarking.com/products/cosco-automatic-numbering-machine-with-six-3-16-inch-wheels https://www.hittmarking.com/products/cosco-automatic-numberi...) to number the pages. Numbered pages are excellent: they allow you to write "Notes continued on page 45". And have page 46, 47, 48 on a different sub-subject as needed. I think of page-numbering as a "FAT32-like filesystem", with a linked-list connecting notes together. (Ex: when I'm done with a notebook, a single thought may go from page 4, 5, 10, 25, 30. I always work from the book beginning to end, but my natural life causes me to revisit ideas at different times, irregularly). --------- I suggest buying pre-numbered notebooks (like Leuchtturm1917) to "learn" how to use page numbers as a note system. Later, if you really like the methodology, buy an automatic numbering machine and just make the page numbers yourself. ------- I'd say that maybe 50% of what I write, I revisit later. You want to get into a habit of writing everything that's useful (meaning you're writing down + saving many things that are non-useful). Later, you can make pages that summarize earlier thoughts (ex: page 50 may have a summary of pages 10, 15, 20, 21, 22, and 23, and guide you back to earlier notes). But this is only effective if the pages were numbered. When your "cheap notebook" fills up at 70-pages, you can rewrite the important information into the more permanent books, and throw away the cheap notebook. It will be 50% filled with useless crap anyway, so a revision pass is expected and necessary. "Writing to throw away" is a good habit IMO.