Add pull-out drawers, stackable bins, or tension rods under the sink to hang spray bottles. Install a false drawer front with a hidden compartment or use adhesive hooks inside cabinet doors for hanging small items.

Paint with waterproof cabinet paint, replace hardware, and add peel-and-stick wallpaper to drawers for a fresh look.

Use vertical space: wall-mounted racks for glasses, fold-down shelves, or a pegboard for tools. Magnetic strips hold bottle openers and knives.