For things online, I just bookmark web pages in a folder called "Other". For written materials/books, I write notes in the margins or write free-hand notes on a piece of paper and insert it in the book somewhere. Then when I'm bored, instead of infinite-scrolling some stupid app, I try to pick out of the "Other" folder or read a book off the shelf. At least, that's what I aspire to do most of the time...
I also decided that if something's worth remembering, I'll remember it. If it's not worth remembering, then I'm also not gonna both re-reading notes about it, no matter what note-taking tool or method I use...