It started with a billing alert.
Estimated charges had crossed $250. Not scary money, but enough to make me look. And what actually caught my attention wasn't the number, it was the alert itself. I'd clearly set this up at some point, and the threshold felt stale.
So I went looking for where the alert lived.
It came from a BillingAlerts CloudFormation stack I created back in 2014 and completely forgot about. So a thing I forgot about was warning me about all the other things I'd forgotten about.
I opened my stack list and that's when I saw it wasn't alone. It was sitting in a lineup of stacks, and I didn't recognise half of them. Years of leftovers, just sitting there.
