I fold using my ruler. I have a larger piece of matboard cut double the size of my ruler for my over five yard pieces--that way each large piece (when folded) is double of width and sits on my shelves nicely without taking so much vertical space. I use my smaller ruler to fold my half yard and under pieces and store them in one of the stackable plastic bins that have drawers. I just open the drawer and can see all them at once.