Crowley is a bloody bastard
I don't know who to be mad at, Crowley for killing Sarah, or the writers for coming up with the idea. And then, to rub salt in the wound, the guys found the hex bag after she was gone. That just hurt. Also, it added Sam's sad puppy face on top of his already ill and weary countenance, which is all kinds of heart-breaking.
Interesting to see that not everyone they save is able to go back to a normal life. Tommy obviously had some residual issues from his adventure with the Winchesters. Which is understandable, given that he was abducted and hung up in a wendigo's pantry for future snacking.
Sarah expressing her preference for Sam's shaggy bangs haircut was totally cute.
OMG, Castiel shopping for all Dean's favorite things was priceless. Who knew he could get so upset over missing pie. Don't worry, it wouldn't have worked anyway, Castiel. Trying to buy your way back into someone's favor never works. But your heart was in the right place.
That Abbaddon situation was a fiasco in the making. Yes, they had a demon in storage, but why not find a lesser demon to try this new exorcism on, just in case it didn't work? Nope, we're gonna give it a shot on one of the most powerful demons we've ever encountered. Huge goof there. Although now that she's free again, I smell a big Abbaddon/Crowley showdown in the making. That could be interesting.