Things I Wish I Would Have Known Coming Back In To American Culture:

1. Katelin Cooper is on Gossip Girl. A little heads-up would have been nice.

2. Don't buy "White Horse" by Taylor Swift. It's a good song, but after three listens, you'll be sorry you paid $0.99 for it.

3. Following a bunch of people via twitter-to-phone is a HUGE distraction from real life.

I'm sure there will be more to come...