National Margarita Day

Somehow, people manage to make every day National [your thing here] Day. Like margaritas. If they're really ambitious, they'll make an entire month commemorate their cause. I would have loved a National Margarita Month, but I probably wouldn't get much done. I would use up all those bottles of not-so-great Tequila that are currently sitting on the back of the shelf, though.
As near as I could tell, it's only Margarita Day here in the USA. A quick search on the South of the Border Internet didn't turn up anything about a Mexican Margarita day (Día Nacional de la Margarita). One site did say that since we're celebrating Margarita Day here, there's no reason for Mexicans to miss out.

This margarita used lime, Meyer lemon, Citronge, Jose Cuervo Tradicional Reposado Tequila (100% agave), with agave sweetener and ice. That's it. It worked well, although the Meyer lemons have less of a citrus bite than pure limes.