* 1 cup white sugar, or to taste
* 4 lemons, juiced
* 4 limes, juiced
* 4 oranges, juiced
* 3 quarts cold water
* 1 lime, sliced into rounds (optional)
* 12 cups ice cubes
1. Pour the sugar, lemon juice, lime juice, and orange juice into a gallon-sized container; stir until the sugar has dissolved. Serve over ice with a slice of lime if desired.