On the Sansa thing....
I agree that it is very interesting, and possibly out of character for Littlefinger to turn her over to the Boltons.
I noted that the writers threw in the conversation between Littlefinger and Ramsay, where Littlefinger says "You are a Lord that I have heard very little about" (paraphrased). My guess is that the point of that conversation was to show us that Littlefinger didn't realize that he was turning Sansa over to a psychopath.
Another thing I noticed was that, when she was introduced to Ramsay, the camera panned over to a group of young women who seemed especially interested in Sansa. My first thought was that they were the spearwives that accompanied Mance, but then I remembered that none of that has happened in the show. Not sure if those girls will play a significant role or not.
When the old lady showed Sansa to her room, she told her "The North Remembers". My guess is that this will be the explanation for the "Ghost of Winterfell". Bolton men will start dying mysteriously and we will find out that they are being killed by northmen/northwomen who are still loyal to the Starks.
I have a hard time seeing Sansa being the one who is killing those men. HBO laid the groundwork for that with Littlefinger telling her to avenge her family, but my guess is that Littlefinger's plan will go horribly wrong when Ramsay's true nature is revealed. Poor Sansa.
One thing I am curious about is how Brienne fits into the Sansa storyline. I still think Theon will be the one to rescue her from the Boltons. Will Brienne be allowed to enter Winterfell and help with the rescue? Will Theon end up taking Sansa to Brienne who is camped outside the castle? We may not find out until next season.
@Air_Thurman Interesting point about Ollie. You may be on the right track. Hard to see him turning against Jon, but it does seem likely that they would be more likely to have him betrayed by a character we know than to be betrayed by some random dude in black.
Really loved the digs Marjorie was taking at Cersei last night. The interaction between the two of them, and between Tommen and each of them, was really well done.