Love this idea. Now I just have to find a cabinet door that will hold my spice collection! Forget the spice rack! Use a mop holder to store spices on the inside of a cabinet door. (no more searching through the deep cupboard for that one spice!
Measurement conversion chart and labeled measuring cup holder for your cabinets doors. (I did this and every time I opened the cabinet, the cups would SMACK the door loudly. It would do better just in a cabinet and not on the door.