Ask AWS how to cut your bill and you get pointed at three tools with overlapping names and different jobs: Trusted Advisor, Compute Optimizer, and Cost Explorer. Most comparisons list features. The question that actually matters is coverage: of the money you could realistically recover this quarter, how much can each tool even see? That framing changes the conclusion. The tools are good at what they look at. The problem is the waste categories none of them looks at, which for most accounts in...