If you've been to my house and walked in my study, you'll notice I not only have piles of books, but I also have heaps of notes. Some are in folders organized by books of the bible or by topic. Some are just odd pieces of paper in a basket. I've also collected hundreds of questions from conferences or local talks. And this is just my physical mess; my digital files are pretty similar.
Till I come, give thyself to reading, to exhortation, to teaching. ... Occupy thyself with these things; be wholly in them, that thy progress may be manifest to all. (1 Timothy 4:13, 15)