I have used the system you're describing, however, I short-cut it further. Clip papers together that are going in a given folder, put a sticky note on the bundle with the file folder's name, and throw it in your admin's inbox.

My admin then gets the folder, applies the appropriate label, and files. This works well with a large amount of new folders and also allows you to "file" from anywhere, as long as you have the content, paper clips, and sticky notes.

Good luck!