Savannah Chrisley, whose deepest squats known to man made headlines as she spread 'em poolside during a recent L.A. workout, is now reaping the benefits and spreading a little sober goodness. The 23-year-old "Chrisley Knows Best" star today appeared in an unusual video for her 2.2 million Instagram followers, with the Southern Belle touting the benefits of alcohol-free margaritas. Savannah, who kicked off Tuesday in bed with a giant rant about "The Bachelor," swiftly changed topics here, and it was thoughtful stuff. Check it out below.