Folder system or ability to categorize reports

When I first started making reports I put a prefix on the report to indicate where it was being used such as "360 - CTAs..." or "Dash - My Contacts...".  Now that I have a lot more reports it would be helpful if there was a way to categorize the reports to indicate where they are being reference.  This could be manually set by the person creating the report or if they system could dynamically tell where it was referenced and then display that in Reports 2.0 the person editing the report could be more aware of where that report is used and what consequences it could have for users.