Congratulations, you shining beacon of good grades, better board scores and obnoxiously impressive extracurricular activities: You’ve made it to Cornell, the Ben Affleck of the Ivy League! Now that you’re on your way to Ithaca — also known as the Middle of Nowhere — you’ll need a guide to keep you safe from all the crazy townies, fratty upperclassmen and irritatingly punctilious R.A.s.