8. Add drive-thrus
Americans love anything that's convenient (see also: texting instead of a phone call, Pop-Tarts instead of a piece of fruit covered in frosting), and ordering a burrito without ever having to leave your car falls into that category.
9. Have late-night locations
McDonald's, Burger King, Taco Bell, and Wendy's have all figured out that people like to eat way past dinnertime, with plenty of their locations offering 24-hour drive-thrus. While that might not be operationally possible for Chipotle, staying open until midnight on Friday and Saturday night would win it a lot of new fans. Fans who just got out of the bar and are hungry for Mexican food.