What are your most impressive/creative health score indicators?

After deploying the standard Scorecard measures around cases, SEE Scores as well as Usage, we've been tasked to come up with/propose some new and innovative measures for next year. While refining and isolating existing measures helps, we are also wondering if any other Admins would like to share any custom measures or perhaps the supporting user stories that helped derived them ? Any input is greatly appreciated and fully understand that some info is definitely proprietary!