Whether you're planning a simple kitchen spruce-up or a complete overhaul, deciding what to do about your cabinetry is one of the biggest decisions you'll make. New cabinets can take up nearly 50 percent of your total budget for a kitchen renovation, and functional cabinets can mean the difference between a kitchen that works and one that doesn't. But what if you can't afford to buy all-new cabinets with the latest storage features and styles?