Example Concept: To minimize unused CSS rules, start by auditing your existing stylesheets to identify and remove any unused selectors. Use a modular approach by breaking down styles into smaller, reusable components. Implement a naming convention like BEM (Block Element Modifier) to maintain consistency. Regularly refactor your CSS and use tools like CSS linters to enforce best practices. Finally, consider using a CSS preprocessor to manage variables and mixins, which can help keep your styles organized and reduce redundancy.