One part frozen limeade, one part tequila, two parts Sprite or Mountain Dew. (for instance, 6 oz frozen limeade, 6 oz tequila, and 12 oz Sprite or Mountain Dew). I use diet drinks - I know you're not supposed to, but there's so much sugar in the limeade, I figure it offsets the alcohol enough! The sodas should be cold. Stir and serve over ice. Simple and yummy. Enjoy!