A while ago... I attended a day long session where Microsoft has lead a class about governing Azure resources. They covered using management groups and blueprints to help template and create re-usable tools to help ensure resources in Azure don't sprawl and are allocated to the proper groups that own the resources. I am curious if there are any other best practices, tips, tricks, etc. that are documented or undocumented that others recommend reading and following?
Azure Governance Workshop Roadshow was the name of the aforementioned session - if you have a chance to attend it's a great and informative session.