Organizational parties are not terribly big at the U. There's the annual pre-graduation house party, but it's kind of hard to realistically invite 28,000 people to a party, so mainly only the people who organize it and their friends go. The Union has started a program called Crimson Nights, held periodically throughout the semester. This late-night program features a variety of entertainment including comedy shows, bowling, crafts, movies, live music, and much more. And it's free!