Managed services and serverless deployments have become increasingly popular in the software development process, shifting focus from infrastructure resources to application functionality and security. However, these managed services come with associated costs that can accumulate into unnecessary overhead expenses if not monitored. To mitigate these costs, it's essential to track resource consumption using observability, design resource-efficient APIs, follow best practices for writing APIs, refine infrastructure resource allocation, identify unused resources being deployed, and strategize for efficiency savings. Utilizing tools like Lumigo can help navigate complex environments, collect observable data, and perform automated cost optimization. By implementing these strategies, organizations can reduce unnecessary costs and optimize their cloud resource utilization.