The most important thing about traveling is paying close attention to your itenerary. So when you land in Chicago thinking you only have four hours to kill over night and you actually have a twenty hour layover you won't be completely flustered with what to do. Luckily a nice hotel clerk gave me a killer deal on a room so I got an unexpected good nights sleep and got to parade around the Windy City playing tourist in the morning. Life tip: always ask the bartender what kinda of pizza they recommend, I guarantee you won't regret it. Unless you are lactose tolerant.
For real now, off to Ireland !