Feature flags, while offering flexibility and control in software development, can introduce cognitive load and technical debt if not managed properly. To mitigate these issues, it is crucial to implement clear expiration policies, automate backlogs, and limit the number of active flags. Retiring feature flags completely from both the configuration and the codebase ensures long-term success and reduces complexity. The concept of "zombie flags"—those that outstay their welcome—highlights the need for intentional management and established processes for flag retirement, such as setting expiration dates and enforcing their removal. Techniques like attaching time bombs to feature flags or applying Work in Progress (WIP) limits can help maintain a manageable number of active flags. The importance of removing flag implementations from the codebase is emphasized to prevent hidden costs. Effective feature flag management, as discussed, aims to keep development environments healthy and agile, allowing teams to leverage the benefits of feature flags without incurring unnecessary burdens.