I was just about to create thread on the Vault regarding a similar issue so I might as lump it here. Even before the crazy Black Friday-Cyber Monday spending spree, I had too much in the Vault main interface, it was difficult to locate add-in modules and content.
Please implement a user managed metadata/tag or folder system that allows us to categorise/sort/separate the content in the Vault. Even if at the very least you could sort with the Marketplace categories.