Mismanagement of database infrastructure costs can lead to significant financial losses for tech companies. In this article, we discuss how to optimize these costs by sharing real-life examples from a company that faced surging operational costs and needed urgent infrastructure revamping. The solution involved redesigning the cloud architecture, real-time infrastructure, and data pipelines, which led to a significant reduction in yearly database infrastructure costs. Key takeaways include considering cost implications when scaling and ensuring efficient resource provisioning by replacing pricy managed services with more cost-effective self-service tools.