Simple Business Card Storage Box!

So I went looking for a business card holder and when I say "holder" I am speaking of a means to store business cards which I have collected from people and not to distribute mine. Wanted something simple and easy to use (and print) yet would look good and be functional. Oh and it had to also accept the larger European format cads too. Believe it or not I could not find something to meet my needs (at least at the time) so I created my own. Also made a couple versions with notches on the side