start doing subfolders to sort by quality: "okay", "good", "great". once those become too many - delete all the contents of the "okay" folder and spread out the remaining ones. why would you waste time on the lowest quality tier, especially if you already have too many better ones?

or keep everything and start tagging.

I've been having similar problems. At 670 mangos currently just use folders is bloody ridiculous. I wish vanilla Windows let you tag folders.

Anyway, this general might be interesting to you, OP. It's got links to h-manga collection management programs, among other things. I can heartily recommend Happypanda!
>>>/h/4127848

Put each story in a zip file (cbz), use an ebook manager like Calibre and >start tagging.

>>32489
I do it by author.

>>32535
>Portable, self-contained in folder and cross-platform
>2 view modes: thumbnails in a grid and a simple table
>Advanced gallery search with regex support
>Gallery tagging: userdefined namespaces and tags
>Gallery metadata fetching from the web (Currently only supports g.e-hentai, exhentai and indirectly panda.chaika.moe)
>Gallery downloading from the web (Currently supports g.e-hentai, exhentai and panda.chaika.moe URLs)
>Duplicate detecting when adding galleries
>Multiple ways of adding galleries to make it as convienient as possible! (like folder monitoring, etc.
>Recursive directory/archive scanning. Can treat each subfolder as a gallery (applies to archives too), or as chapters of gallery!
>Supports ZIP/CBZ, RAR/CBR and directories with loose files
>Customizable by lots of settings
>And lots more...
Well, fuck me.

It even gets tags from Sad Panda... I think I'm gonna love this.

>>32582
And now that I think about it, if it got tags from mangaupdates too it would be more than perfect.

>>32535
I tried happypanda or pandaviewer in the past and only 1 of them managed to launch for me. I didn't think it was that great. Still, even if I did try it out again I should still organised it all by artist then should't I?