I keep all my magazines as my taste changes over time.
With file cards I go thru each mag and write which patterns I like and a short description the pg number etc.
This way I can scan the cards and find what Im interested in making.
When I run out of room to store them I don't know what I will do. For now they are in cardboard mag holders and on shelves.
Also if I don't like any patterns in a mag at least I can get rid of that mag.