This bracing cocktail is great at any Super Bowl party or before a home-cooked Mexican meal.
Spread coarse salt onto a flat plate. Put lime juice into a shallow bowl. Dip rims of 8 glasses into lime juice, then into salt to coat. Fill glasses with ice. Divide tequila and tonic water evenly among glasses. Squeeze 1 to 2 lime wedges into each drink. Gently stir to combine. Serve immediately.