My shop was designed with many windows to maximize natural light. Unfortunately many windows means that there isn't much wall space for tool storage. The narrow shelves and racks installed in front of windows provide additional storage without diminishing the light or the view of the backyard. I got the idea from a photo of the shop at Popular Woodworking, if I remember correctly. The racks are customized for the various tools. I built the latest racks several months ago. I wasn't planning on posting this, but I thought other folks might be able to use this idea.