When you think of St Patrick's Day, you probably think of green beer, shot glass necklaces that say "Kiss Me I'm Irish", and everybody talking about how Irish they suddenly are. That's all well and good, but I bet you don't know much about the holiday's origins, or the saint it celebrates. Well, now that you've taken off that stupid hat and stopped talking like a leprechaun for a second, it's time to educate yourself a smidge.