Citrus Punch(Serves 40)  
["1 large can pineapple juice", "1/2 small can frozen lemonade", "1 large can frozen orange juice", "1 c. sugar", "2 (2 liter) ginger ale, chilled"]
["Mix pineapple juice, lemonade, orange juice and sugar ahead of time and chill.", "Right before serving, add chilled ginger ale."]
["pineapple juice", "frozen lemonade", "orange juice", "sugar", "liter"]