A number of AWS services charge by the hour but most services needed for development or testing are only needed during work hours. If it's only needed for 40 hours a week, why pay for the extra 128 hours? At the same time, maybe you'd rather keep the number of people in AWS to a minimum. In this talk, we'll create a Slack bot that automatically turns off AWS services at the end of the day but allows employees to turn them on or off from Slack as needed. We'll also set up an AWS IAM user with permissions to just the EC2 instances for added security.