In a pitcher, combine the tequila, limonada and orange liqueur. (Or, stir together the lime juice, sugar and water until dissolved before adding the remaining ingredients). Cover and refrigerate until chilled about 2 hours.
Use the lime and salt to crust the rims of eight 6-ounce martini glasses as described in the Bartender’s recipe. Fill a cocktail shaker half full with ice and pour in a generous 1 cup of margarita mixture. Shake and strain into two of the prepared glasses. Repeat for the remaining margaritas.