To paint over ANY surface, without sanding, use a product called 'ESP Easy Surface Prep', available at hardware and paint shops. Wipe on, wipe off and paint in 90 minutes. Works well over enamel paint , without having to sand. SAVES HOURS of work. It was recommended to me by a professional painter.
The gray subway tiles in this kitchen help highlight the creamy cabinets! More backsplash ideas: http://www.bhg.com/kitchen/backsplash/subway-tile-backsplash/?socsrc=bhgpin070414coordinatedcountertops&page=13
Before & After: Upgrading a Builder's Grade Kitchen — They changed out the light wood floors for dark, and installed new custom cabinets built by a friend. Stainless steel appliances, granite flooring and a subway tile backsplash all helped to transform this small kitchen into a better reflection of Kalie's vision.