Here are some examples of pullouts for the kitchen that can be added to existing cabinets, not requiring new cabinets.
This trash can pullout looks like a drawer with a cabinet door below it and it opens when the drawer is opened.
When shut, it looks just like the cabinet beside it.
Below is one with dividers for cookie sheets, muffin pans, and cake pans.
Sink tilt out trays for sponges. Even has a ring holder.
Full extension pullout under sink for easy access to entire drawer.