What better way to prep for Taco Tuesday than with Margarita Monday at Masa? Every week the South End spot has got your hook-up, serving up a rotating array of tasty margaritas for $8 each. They’ll be changing up the ingredients based on seasonality, availability and the mood of their in-house mixologists so you’re always in store for a fun surprise. Their inaugural creation was a cucumber cilantro margarita, but future renditions might incorporate apricot or coconut or peaches or strawberry – who knows? The possibilities are practically endless. Call 617.338.8884 if you’ve got questions. Bar opens at 4:00pm.