1. Implement a code review process. Every line of code should undergo thorough review. Developers and reviewers must work together to identify unnecessary files, errors, and potential vulnerabilities.

2. Automate quality checks. Static and dynamic code analysis tools can identify unnecessary files or poor coding practices. Automation reduces review time and increases accuracy.

3. Conduct regular build testing. Frequent test builds help verify that the application includes only essential files. Each new build should be analyzed for size, performance, and content.

4. Adopt resource management policies. Audio, video, and image files should be stored and managed through versioning systems to ensure only necessary resources are included.

5. Provide ongoing training for the team. Offering updated courses on best development practices helps minimize accidental errors, such as including unnecessary files.

1. Neglecting final build testing. Application checks before release are crucial. Skipping this step can lead to obvious errors, such as including unnecessary files.

2. Storing unnecessary files in the production repository. Every file added to the production repository should be verified for relevance and necessity. Leaving non-essential content increases the risk of errors.

3. Overlooking the importance of documentation. Incomplete or non-existent documentation makes it difficult for reviewers to understand the purpose of certain files and processes, increasing the risk of errors.

4. Over-relying on automated tools. While tools are helpful, they cannot replace human judgment. A mix of automation and manual review is essential.

5. Skipping time allocation for cleanup. Before release, it is important to dedicate time to removing unnecessary files and resources, ensuring an optimized and professional product.