I put the pattern envelopes (without the patterns) in sheet protectors and put them in notebooks arranged by style. Then I put the patterns in quart size baggies and put them into shoe boxes in number order like at the stores. Then I place them in a cabinet that holds just my notebooks & my patterns. I have my quilt patterns on a top shelf of another cabinet, but I am thinking of putting them all in one cabinet. I am very blessed to have the space for a pattern cabinet, but I made sure that when I planned my sewing room that I had a "pattern cabinet". Good Luck on your search.
Have a blessed day.
debra