Plastic sleeves are great :thumbup: :thumbup:
I even use a razor knife to cut the patterns from magazines because I hate those ragged edges and have lost bits to them. I tend to put two patterns per sleeve, facing front and back. My binders are organized by theme of pattern (baby, scrappy, gift idea, etc) and I also have tips and articles (how-to's, backing ideas, etc).
The whole magazines that I've just had to save are in plastic sleeves and a binder as well. At least, the ones I've sorted through are; the rest are still in a box.
I've created an Access file for keeping track of all my pattern information. I love Access because it allows me to organize, then sort through, whatever I build. Once upon a time, I had to teach data base software in high school and barely stayed ahead of the students. Access is much simpler.