Chipotle is celebrating Leap Day by offering free guacamole to Chipotle Rewards members who use the code EXTRA24 at checkout on the Chipotle app and website. This offer allows for a free small side or entrée topping of guacamole with the purchase of a full-priced entrée item. Additionally, from February 26th to 28th, fans can participate in the "Extra Day, Extra Codes" promotion through Chipotle's Instagram, where hidden keywords offer a chance to win free guacamole for a year. For more information, you can visit the linked page.