Sidle up to the bar at Tamayo between 5 and 7 p.m. weekdays and prepare to get happy. Very happy. The jazzy, snazzy atmosphere at this upscale Mexican restaurant is enough to make you feel upbeat, but the happy-hour deal is guaranteed to elevate your attitude. During Hora Feliz, what is already one of the best margaritas in town comes with an extra half-shot of tequila, as well as botanas -- free little tidbits that go down just as smoothly. The offerings change daily; we've supped our way through little bowls of poblano-packed soup, dipped tortilla chips into a zesty black bean dip, munched on chicken-filled tamales and tucked into authentic ceviche. ¡Salud!