files … physical paper documents in file folders in addition to digital copies that I keep on a flash drive in a safe deposit box. I have a folder of contracts, correspondence, and pertinent information about the publisher (my agent, if I ever get one will be added), and the stories/books—are they still in print and who has the rights. In my case, I have requested my rights be returned.
Perhaps, it’s the OCD in me. Perhaps. But it’s more likely because in my B.R. jobs (Before Retired), I absolutely had to be able to put my hand on a document within short minutes when the boss asked for it. I always filed my daily work documents in their appropriate folders before I left for the day. I'm not quite that dedicated now that I'm retired, but I do try.