Just a little thought I had the other day:
With Mary back in Sam & Dean's lives, does this mean Dean will finally get some homemade pie?
Keep in mind, we know Mary probably did bake pie because A) Dean loves it and B) In his memory of Mary from "Dark Side Of The Moon" he comforts her and then she goes "Want some pie?". I bet she was good at cooking/baking. Remember her mom, Deana, cooking away from "In The Beginning"? I'm sure Mary picked up some skills from her.
Dean better get some pie, is all I'm saying.