Irmarita (Like a Margarita, Only Better)

Up until a few years ago, my wife and I made margaritas the unimaginative way - buying margarita mix and following the directions on the back. Then, visiting some friends, they made us some margaritas using frozen limeade, which were pretty darn good. My wife adjusted that recipe a bit, and came up with something even better. Another friend liked it so much, he said it wasn't just a plain margarita, anymore. He suggested that we call it an Irmarita, and the name's stuck.