Grab a few friends and argue the merits of what exactly makes a puffy taco the best in the land. Visit institutions like Leon Valley's Henry's Puffy Tacos (multiple locations), which has been cranking out family-driven recipes since 1978 and also cranks out chilly margaritas to wash down your puffy. Or bring some cash and head to Ray's Drive Inn (822 SW 19th St., (210) 432-7171), a West Side landmark since 1956, which doles up simple orders of puffies inside a quaint café. Debate the properties of an excellent taco — is it the delicate way the corn masa pillows? Or the first big crunch as you bite into the puffy with purpose? After all, you've gotta eat it before the whole things falls apart in your hands.