So I am going to a thing, a get together if you will, and there will be beer drinking and everyone is supposed to bring a six of something they like to drink and share. It was specified there's a theme (god, I know) of "IPA" and I'll be honest I barely understand what that means as a category. I'm kind of a "I'll drink whatever's around" type of beer drinker and I just drink Sierra Nevada at home.

So any suggestions as to a good (easy to find) IPA?