Here's how to make your own folders for storing artwork, clippings, etc..
|Each folder uses a piece of posterboard 21" x 22".
Using measurements on illustration above transfer markings to the posterboard.
Cut the corner portions away.
Use a ruler and stylus to score each of the fold lines.
Fold on all scored lines, first the two narrow ends, then the two sides.
Attach velcro dots to make overlapping sides remain closed.
If you wish to have the depth of the portfolio 2" instead of 1", begin with posterboard 23" x 24".