I'm starting to amass a pretty large amount of original Gameboy games and I'm looking for a way to store them.

What I'd like to do is keep them in a binder, in plastic pouches. But I'm not exactly sure how to find such a thing, and how to get the right size plastic sleeves to fit in a binder. And also, what kind of binder would be correct.

I'm wondering if anyone else has tried such a thing, and might have advice on what kind / size of binders, plastic sleeves to get. And where to get them.