Camo card folder

With so many camo cards and decals from the kits, how do you keep them?
Initially I just put them all in a clear file but after a while it's hard to look thru them. O even lost my favorite Land Gans camo card, the first edition!
I did not want to use ring binders as they will damage the holes punched on the cards after a while.
Then I spotted cheap $2sgd A5 folders from the local dais. That's right, $2sgd. Love them !!!