Are the berries in your fridge looking sad? Buzz them up in the blender for a refreshing Mexican-style agua fresca.
Purée strawberries and blueberries in a blender. Place in a fine mesh sieve over a bowl, and strain juice into bowl; discard seeds and pulp. Rinse blender, pour in juice and blend with 1 cup ice, 1 cup water, lime juice, and agave nectar or sugar. Serve over ice, and garnish with mint.