Speaking of patterns....

I came across this link and said to myself "Man I probably have half these patterns in my collection!" but it would take hours to find them.  SO my question is, how do you keep your sewing patterns organized?  I was thinking of making binders.  Putting the patterns in sections of types.  I used to have them organized by Maker & Year but they have since gotten mixed up while looking for certain ones and selling others.  Does anyone else use binders?  Do you just put the cover in a sleeve or the whole pattern.  And how do you catorgorize them?  Give me some ideas here....