Lime juice: Lime juice is a common ingredient in many cocktails, as it adds a tangy, citrus flavor. It is often used in combination with other ingredients such as sugar, alcohol, and other fruit juices to create a balanced, flavorful drink. Some popular cocktails that use lime juice include Margaritas, Daiquiris, Gimlets, and Mojitos. Lime juice can also be used as a garnish for drinks like the Margarita, and is also used in many non-alcoholic drinks like limeades and iced teas. It's a versatile ingredient that is used in many drinks and can add a refreshing taste to any cocktail.