Zettelkästen?
My father used to have a gigantic collection of index cards when he worked as a professor at a high school for librarians. We&#x27;re talking about 100,000 cards or more. When he had to give a seminar session about topic X, he just selected a bunch of cards from his well-ordered, beautiful wooden storage boxes, fastened them with a rubber band, and took them for work. They contained references, small summaries, newspaper articles, keywords, etc.<p>I tried to use the same system but never had the patience to implement it - and the digital versus analogue divide also prevented it, because this works best if you use only digital or only analogue. Index cards <i>and</i> a database don&#x27;t work well together.<p><i>Edit: Maybe important, and I forget to mention it: All of my attempts of replicating such a system on the computer have failed, and I have never heard of anyone in Academia who successfully used a digital system throughout their career. #1 Reason of failure is that the database format or program became obsolete, #2 Database&#x2F;Systems Migration problems.</i>