Made-up food holidays aren’t always a cause for circling your calendars. Not many people have alarms set for National Avocado Day, for example, and you don’t see a lot of office breakroom countdowns for National Pancake Week. But this Saturday — aka National Margarita Day — probably rates a reminder in your phone.

This holiday celebrating everybody’s favorite weekend kickoff drink is scheduled for a Saturday, which allows you to celebrate properly without a workday hangover. More importantly, if you’re quick on the draw, you can snag yourself a free Marg courtesy of the folks at CheapCaribbean.

Our favorite purveyor of discounted tropical holidays won’t be lurking in bars handing out free tequila or anything. But it will Venmo you $10 if you tweet out a picture of your Margarita and tag @CheapCaribbean. The offer is only good to the first 100 people who tag, and the fun gets started at 3:00 PM. And since chances are you probably started the fun before that, you might want to set your alarm now.

Even if you don’t get a free drink, CheapCaribbean will enter everyone who tweets a photo of a Marg into a drawing for an all-inclusive trip to the Hotel Riu Tequila in Riviera Maya, flights included.

So while you might not be staying up all night waiting for sandwiches to come down the chimney before National Grilled Cheese Day, this February 22 you should have reason to get excited. National Margarita Day comes just once a year (we think), and there’s no reason you shouldn’t kick it off by getting something for free.