Which do you use? What are the pros and cons of it? I've used the composition notebooks for years - durable, plenty of pages, etc. I'm considering switching to a three prong pocket folder (not adding things to it like a binder, just using it as if it were a bound notebook) because they have pockets and we could easily personalize the covers. It would have the benefits of a larger paper spiral without the mess. Anybody do this? Pros? Cons? Somebody talk me into it or talk me down!