The way that kitchen cabinets are typically structured forces you to mix and match things of varying height and size, which wastes a lot of that precious kitchen cabinet space. The best tip we can give you is this: look up!
Expanding upward allows you to double your kitchen cabinet space by using the areas where that empty space is available. If you are creative, you don't always need to go out and purchase things to make this happen.
For example, use a pedestal plate to store two floors of spices in your kitchen cabinet. Use serving trays to do the same thing with your glasses. Four tall glasses at the corners of the kitchen cabinet make it easy to store shorter cups or glasses between them.
For more kitchen cabinet storage space, repurpose a metal or plastic file organizer stand and use it to sort all of your pans; it also keeps things a lot less noisy while searching for the one you want.
There are also plenty of kitchen cabinet organizing storage solutions you can purchase that will help do the same thing. Bed Bath and Beyond offers an outstanding cabinet organizer called the Copco Non Skid Turntables. These are like multi-tiered Lazy Susan's, and are available in one or two shelves, which allows you to build up and gives you full viewing of all of your items in the kitchen cabinet with just a spin. Another idea is to invest in a universal pot top, like the one offered by Williams and Sonoma. Not only does this save space in the kitchen cabinet, it also cuts down on your clean up time.