How do you organize your video library?

Alphabetical.

Used to go by directors/actors or studios, sometimes also through certain large movie franchises or different countries. But as my movie collection grew larger and larger, I decided that it did never look "right", and I started dividing the films into genres, like with my horror films:

Old black and white, classic horror films (starting with Nosferatu (the original) and then onwards with the Universal Classic Monster/horror films of the 30s, 40s and 50s, then move onto with the Hammer Studio golden era of the 50s and 60s, into more of the classic releases of the 60s, 70s 80s and 90s, with a few, here and there from the 00s.

After those, I include most of my italian/european giallo releases, mostly stuff from the 70s and 80s, then heading into american pre-slasher titles of the mid 70s, into the classic slasher era of the late 70s/early 80s, then following up with supernatural slashers.

Then comes sci-fi/creature feature/monster horror films, usually from the late 70s into the 80s and a few from the 90s and 00s.

Finally, I end up with the more light hearted and fun ones, through horror comedies, splatter films and certain body-horror titles.

Genre

By decade

Used to be by genre then alphabet, but with the amount of movies I have outweighing the storage I have to display them, it's pretty clustered and random.

A mix between genre and no order at all. I also have a separate shelf for my favorite movies.

Alphabetically.

Alphabetically

When I only had DVDs, they were alphabetical. Between Blurays, Criterion Collection movies, Steelbooks, and TV series, its a little more complicated.