>>3101231I organize by show, character, and by genre if they don't belong to a show (animals, food, military, etc). Many of my folders contain sub folders as well, like my Seasonal folder breaks into spring, summer, etc. and my Summer folder breaks into general summer images and swimsuit/beach. It gets complicated at times but as the owner, you get accustomed to it.
>>3102251all pictures are worth saving so long as their of cute anime girls!
i'm approaching 30k /c/ related images and i make sure to back them up on an external and on mega (which can be set up to auto upload your files to a cloud) very useful!