I find "SMD Sample Books" to be a more effective storage/retrieval system for SMD passives than the lidded parts enclosures. I've got some of the latter, but stopped using them for passives (and repurposed them for small 3-6 pin commonly used parts). But I have to admit that that setup is far cleaner and more organized overall than my disaster of a workbench...
The labels reflect the location of the item in the folder (Folder x Page y) and also the shelf in Storage (Rack-Bay-Shelf-Place), if it's a part we use also in production.