Now I literally dismantle cookbooks. I pull out (or copy) what I want to try and put that into a "try" folder.
If it proves to be good enough and easy enough to keep, I then add it to the section in the notebook that is logical. Remember those old-fashioned hand-written recipes that people used to share? I wanted to keep all those in the original handwriting, so I just photo-copy the back and glue them right in. If something comes from a magazine, I just cut it out and glue it in. The key is that I never add anything until it's something that I know I will use long-term.
Some pages are boring and some are pretty, but it's all my favorites in two binders. (The second houses breads and desserts and my extra papers.)
There are a few (very few) recipe books I am keeping intact. For those few, I'm going to make a "don't forget I exist" list with page numbers and put it in the notebook as well. It's been fun adding to it and very practical.