Cache invalidations are the ones that will really get you bad in CloudFront if you're not careful [1].

As a new user, I was working on publishing open source documentation via CloudFront (https://tmuxp.git-pull.com) and made a mistake of invalidating '*', and doing it every time I pushed to CI. This was sphinx-doc, so no cache-busting filenames.

My bill was absolutely enormous. I chewed threw the free tier credits.

If CloudFront ever gets more generous with invalidations, that'd help reduce the sting for those of us that make those early mistakes.

[1] https://docs.aws.amazon.com/AmazonCloudFront/latest/Develope...