What tool do you use for cloud cost optimisation?

Most of the time, my usual editor, because if you really want to cut those costs, you have to put work into the code

Reconfiguring servers will only take you a small part of the way. You have to understand where your costs are coming from and why. Then it's really about understanding your own system and business needs

A bunch of things we wrote internally. Tableau. Microsoft Excel.

The checkbook. Looking for suggestions on better tools...