Ok this is one of the reasons I find supernatural to be great, is the little things that they can tie in, case in point, the essay young sam wrote in After School Speical is about them killing a wearwolf, which is probably the same kill Dean was telling Gordon about in Bloodlust (he was suposed to have been 16 when that happened).

What do you think about this, or what are some other small things you've noticed that make the show great?