I must say that I love the idea of mounting the expedit book cases and then putting them on casters and am going to use it in my studio I am currently re designing. In addition to that I think I will add peg boards to both the closed off ends to hang rulers and other tools for easy access. This is such an amazing idea! I dont even quilt, Im a costume designer for film. I registered on the forum because I though extreme kudo's were needed!