You might say I like fanart, yeah
I use it for my screensaver, actually. You know, that My Pictures Slideshow one that's supposed to be for photos of your loved ones and good memories.
It began as a Touhou folder, but it's grown to encompass more stuff, still mostly Touhou, Love Live, and Pokemon. Pretty much any nice art I find goes in there now.
Surprisingly I very rarely look at doujins, though. No real reason why not, but 99% of my collection is just single images that are cute or funny in their own right, rather than part of an ongoing story.