Put limeade, tequila and triple sec into blender.
Add ice to blender and blend to crush. Add more ice until the consistency of a slushy.
If margarita is too stiff (too much ice), add a touch of water and blend again.
Pour into salt rimmed glass* and serve the margarita!
*Salt Rimmed Glass: Squeeze half a lime into a small bowl with a flat bottom. Dip each glass into the lime juice and then into margarita salt.