I too live in a Cape style house and the walls of my sewing room are all angled except for the dormer and wall where the door is. I have given serious consideration to trying to find stretchy cargo netting and tack that directly to the ceiling. Right now I have a few short shelves that the hubby made attached to the wall (I will go and take a pic later today for you) but it would be convenient if they were on the angled ceiling.