Report and Notebook 'Dashboard' Needed

As we are building more and more reports across teams and product/product lines, the 'Shared Report' section is getting quite messy and it is becoming increasingly difficult to know which report is which with nothing to go on but the name.  This is further complicated as some power users are sharing reports and naming conventions aren't universal.  Deleting reports is also not as intuitive as one would think.

It would be AWESOME to add an additional Tab in the 'Home' (current Tabs are Home, Portfolio, My Work, Activity) called Reports.  That tab could be then broken down into 3 sections -

1. Personal Reports - Reports I created but are not shared
2. Inbound Shared Reports - Reports that were created by others but shared to me
3. Outbound Shared Reports - Reports that were created by me, but shared to others

On this dashboard I'd like to be able to capture brief notes as to what the report was, what filters were applied, audience, etc that would help me differentiate and quickly identify a given report.  Bonus points if I could add tags or otherwise custom search/sort the list /dashboard in some fashion to help organize all the reports.

It would be nice to add comments onto reports so they can be annotated with why they were created or limitations.

UPDATED TITLE to add Notebooks after speaking with Joe Carpenter and he indicated he needs the same functionality for Notebooks also.