Public cloud orgs: what’s the most impactful way you’ve found to control cloud costs?

Lance is correct- tie the costs to someone/department that will feel and care about the costs

Also all development systems should have scripts to shutdown after 24 hours of no activity (or whatever time frame works). We found a lot of DEV systems idle for weeks or months sometimes. Huge organizations can loose track of things at an alarming rate

Tie cost to individual cost centers (project/product teams), not to centralized to IT. Otherwise there's no incentive to adopt new architectures or processes to save costs. 

The most impactful way that I’ve seen is to build an internal FinOps solution or dashboard to consolidate your cloud service billing data. That will help you integrate your cloud billing data with your team structure, which helps consolidate cloud costs in the way that you want it.