In this episode Simon gives you some Black Belt tips around managing you CloudFormation stacks and how to use AWS Organizations to control access to AWS resources. He also gives you a look at Amazon QuickSight ML Insights.
https://aws.amazon.com/blogs/mt/how-to-perform-cross-parameter-validation-using-aws-cloudformation-rules-and-assertions/
https://docs.aws.amazon.com/organizations/latest/userguide/orgs_manage_policies_example-scps.html#example-scp-deny-region
https://aws.amazon.com/quicksight/features-ml/