This makes alot, but it is sooooo good and disappears fast. Just dump 1/2 gal of vodka, 1 12oz can of frozen lemonade, 3 12oz cans of frozen limeade, and 3 2liter bottles of 7-up or other lemon-lime soda. Serve over ice, and get plastered. You'll never even know there is vodka in it.