Prepping drinks for a party can be overwhelming, but one of the easiest ways to make it less stressful is by batching cocktails ahead of time. Not only does this ensure a seamless and balanced drinking experience for your guests, but it also cuts back significantly on the amount of time you’ll spend playing bartender instead of socializing. But what happens if there’s some of that cocktail batch leftover at the end of the night? Should it just be thrown out? In short, it depends. The arti...