Numbers nerd Dylan Grosz over at Apartment List did a series of rigorous tests (aka ate a lot of Chipotle) in order to determine the best way to get more burrito for no more money. Combine any or all of these tricks to get a burrito that is up to 86% larger without being charged extra. Results may vary based on how annoyed your local Chipotle employees are that you're trying to get away with this.