There should be a way to organize pages into folders

I've been saving lots of pages recently using the tags functionality but it would be great if there was some kind of menu to navigate through. Or perhaps a way to put pages into a folder and only search by folders. Some sort of visual system would be best for me.

We've been thinking in the same direction too and have a task in the pipeline to do something like that. Perhaps we can organize tags in a folder-like structure.