My AWS cost optimiser is to use a hosting provider instead of AWS.
Cool. Enjoy!
Yup.
One day, as you spend vast resources tracking and cutting and worrying about your AWS expenses, you’ll think “hey I could cut 100% of AWS costs by not using it!”.
Thinking about cutting AWS costs is your first step on the journey to never using it.
Using AWS may not be your decision. If you're stuck using it by company policy, OP's tool could make you a workplace hero.