Magnetic strip - Free up counter space by getting rid of your knife block. The beauty of the magnet is that you can also attach other utensils to it, like pizza cutters, or blender blades, keeping them out of the way of little hands, too.
Greer and Janssen created DIY shelving from plumbing pipes and reclaimed wood. Home Depot has a good tutorial on Plumbing Pipe Shelving by Ethan Hagan of One Project Closer. Steal This Look: Hudson Milliner Kitchen in New York: Remodelista