Use Ikea Knuff magazine files as under sink storage holders. Screw a magazine file holder to the inside of kitchen cupboards. Add space to store more bulky items like chopping boards, cleaning products etc.
DIY: PVC Pipe Shoe Storage - so fun and so simple, could easily spray paint or cover in fabric or paper too. maybe a horizontal layout of two rows or something. I think this would be good for garage "yard shoes" storage