In the past when I was reading a ton of manga, I've always kept MAL up to date for record-keeping.
I've kept baka-updates up to date (because it shows me when a new chapter was available and I read a ton of ongoing manga).
But now that I look back, I wish I kept a folder of like just random quotes or saved copies of my favorite pages or something.
See, right now, I keep screenshots of the video games I play. For the memories. I mean, why not, I spend HOURS upon hours of gameplay. Why not take screenshots. But I only applied that to games and not the manga.
I was wondering if anyone had similar habits... or just habits that they developed. Certainly, I'm not the only one who has read 1000s of pages.