I have around 1700 dvds. If I didn’t use a system, I would be screwed.
Most are alphabetical. Some are in genre sections, like Sword and Sorcery (Hobbits, GOT, Star Wars, Jason and the Argonauts), Baseball (Field of Dreams, Eight MenOut, etc), gangster, Asian Cinema, children’s movies, etc.
I am considering starting a section of Submarine movies. I have at least 10, but I am not sure if that’s enough to justify its own section.