"Both outposts of the Mexican mainstay (Navy Yard and Dupont Circle) will add unlimited guacamole and margaritas to bottomless brunch menus. Doors open at 11 a.m. on Saturday and 10 a.m. on Sunday with live music, food and drink specials, and giveaways. Discounts call for $6 Corona tall boys, $8 margaritas ($28 pitchers), $8 Casamigos shots, and $8 quesadillas." - Tierney Plumb