It would be great to have the capability of creating folders in the Reports Library. Currently, you only can add a report to a dashboard or leave it in the library but when you create multiple reports, they can get buried.
This would make it easy for a Sales Manager for example to go into the report library and open up the folder of all the sales related reports.
I remember when I had this feature more than 10 years ago with Salesforce, you'd manage reports for Data Maintinanace, Reports for Dashboards, for Admins, for Sales, Marketing, Products and so on and so on - with Folders.