Prefer built-in methods and properties that achieve the same result with less code. This improves readability, reduces potential bugs, and makes your code more maintainable. For DOM manipulations, use specialized methods like `classList.toggle()` instead of conditional add/remove operations: ```javascript // Instead of this: document.documentElement.classList[isDark ? 'add' : 'remove']('dark'); // Use this more concise approach: document.documentElement.classList.toggle('dark', isDark); ``` Similarly, avoid redundant styling properties when fewer properties can achieve the desired effect. Review your CSS classes to eliminate unnecessary declarations that don't contribute to the intended visual outcome: ```tsx // Instead of potentially redundant classes: // Use only what's necessary: ``` These simplifications make code easier to read and maintain while reducing the possibility of conflicting declarations.