Monitoring enhancement: compare permissions across users
It would be cool if the Gearset Permissions Explorer would help you in determining how to collapse Profiles into fewer numbers. The model would be https://perm-comparator.herokuapp.com/
A typical org has proliferated Profiles over the years, many only slightly different from one another. As SFDC wants us to move to Permission Sets, job one is to collapse the profiles into as few as possible - this requires comparing user permissions against each other (you can't just compare profiles, you need to know what additional permissions some users have vs others too)
Since SFDC is finally making dynamic Lightning pages GA (for custom objects), this removes one of the reasons for these extra profiles).
Current Permissions Explorer is too limited to take actual actions on without tedious offline record keeping