Best way to store 7" vinyl collection?

Before anyone slags off sound quality of 7" vinyl, save it. I'm looking for storage solutions for a growing number of 45s, and these overpriced cardboard comic book boxes are bollocks. Can someone recommend plastic or laminated storage that will stand up to long term storage?

Right now they're just mixed in with the LPs in a supreme crate, but it would be nice to have them separate for browsing or the occasional trip to a friend's house. Much obliged.

LOL, you listen to analogue media... j/k