I have never liked adding dirty/cloudy ice to a great cocktail but the cost of clear ice has always been a bit prohibitive for me. One method of making clear ice at home is to use a cooler. Filling a cooler ~75% with water and then putting it uncovered in a freezer for ~14 hours creates a crystal clear layer of ice while the dissolved gasses remain in the water layer below. The 1-2 inch sheet of clear ice can then be removed and cut down to size.
