Patent ID: 8043019

Claim:
A storage system comprising: at least one storage sheet, said at least one storage sheet having at least one card pocket positioned thereon and sized to receive an index card therein; said card pocket generally formed in a plane and comprising a front and a back piece of material joined at least along their bottom edge; said at least one storage sheet comprising a backing sheet joined to said card pocket at least along said bottom edge; a panel pocket between said card pocket and said backing sheet; wherein said card pocket includes a mouth and a flap for selectively covering said mouth in a closed position; wherein said card pocket includes a cut-out in a front panel thereof, along a lower edge of said cut-out being a slit edge for receiving at least part of said flap thereunder to retain said flap in a closed position wherein said flap generally covers said mouth, wherein said slit edge extends laterally beyond said cut-out; wherein said slit edge defines an outwardly bent lip having a crease and a tip, the tip pivotable about the crease, the tip bent outwardly about the crease such that the tip of the outwardly bent lip forms an angle with the plane to guide the flap under the slit edge when said flap is moved to said closed position.