I have Projects, Details, Media and Mirrors. Mirrors are computers (whole drives), archives (mainly of retro stuff) and websites (usually my own). Media is divided into Books, Audio, Video, Music, Pictures and so on. Projects I divide up into academic, coding, creative, games, there are a few others. Details is where I keep admin reminders, dotfiles for various systems, common admin address book, stuff like that. I tend to have Details on all the systems and keep it small, then specific bits of the rest when I use them. Well, in theory, I am also in midst of organising it all.