Avoid these common pitfalls when optimizing your site for mobile:
1. Ignoring Mobile Users: Not considering mobile users in your design process. 2. Slow Loading Times: Failing to optimize images and scripts. 3. Poor Navigation: Complex menus that are hard to navigate on a small screen. 4. Pop-ups: Intrusive pop-ups that disrupt the user experience. 5. Non-responsive Design: Not using responsive design techniques.