Jars are always popular and readily available. And also easy on the pocketbook.
If you have room, bring in a kitchen island. You can always use the surface space. And put a lot behind those doors.
This is the ultimate in organization! Having your measuring spoons all lined up in size sequence on the inside of a cabinet door.
These steel shelves are being sold at a lot of places now. Many have wheels so you can roll them about. If you don't have a pantry, these are ideal. (And if I ever find room, I'm going to have one too!)