A well-stocked home bar isn't just about the booze. Mixers add flavor, sweetness, and effervescence to drinks and are actually essential ingredients in classic cocktails. They're also inexpensive and something you can offer to someone who chooses to go the non-alcoholic drink route.
Here are three essential mixers, plus two other favorites, that I like to always have on hand. With these guys around, I just need to add some booze to make simple but delicious drinks.