Pocket Envelope Tutorial

Nothing quite as magical as a good book and nothing makes me happier that a trip to a bookstore or a library. 
Although I love the streamline functionality of my local library I miss the old card catalogs and pocket library cards from the good old days.  Reminisce with me for a minute with this great tutorial from Erinzam.
Tutorial on how to make these pocket envelopes from  Erinzam here