How OnlineOrNot more than halved its AWS bill
Chances are, you've heard one of the main promises of serverless compute: "you only pay for what you use". While convenient when starting a new project, once you start to get continuous usage on that compute, you start to realize you're paying a hefty premium for that convenience. If you're using AWS Lambda like I am, chances are that "for what you use" part isn't completely true either.