If you're in a crunch for time, you can still give your iced coffee a boost with coffee ice cubes. Start by brewing coffee at home and placing it in the fridge to chill. Remove half of the batch and pour it into ice cube trays. Leave the second half in the fridge and once the coffee cubes are frozen, simply combine the two. Typical ice cubes dilute the coffee's flavor as they melt, but this quick fix ensures pure iced coffee that boasts fuller flavor all summer long.