Brush up on your trivia skills
The app: QuizUp
There's no reliable way to "study" for trivia night, but QuizUp can at least put you on the path to domination. The app is chock-full of quick quizzes that will challenge the depths of your useless knowledge, divided up into an enormous range of themes and topics, from geology to the Kardashians. And you don't just have to play by yourself, you can raise the stakes by going up against other random users who want to play.