Alice Miller is in the kitchen chopping up vegetables. She puts the knife down and we can see that there are bits of vegetable still on the edge of the knife blade. The camera turns to Alice, then back to the knife, and we can see that the knife is now completely clean.
When Sam starts having a vision in front of Max's old house, as Dean begins to lead him back to the car, we see Sam reach up and put his left arm across Dean's shoulder. However, in the next shot his arm is bent at his side, and Dean's right arm has dropped to the middle of his back.
The mug that Alice Miller pours Sam coffee in is different than the mug she hands him in the next shot.
The boys see a state trooper car that is white with an American flag on it. In the state of Michigan trooper cars are dark blue and have a Michigan flag decal on the driver's side.
In this episode, the boys go to Saginaw MI, which is a large city in lower Michigan. Most of the episode takes place in a suburban environment (consistent with parts of Saginaw). The motel in this episode is called the Escanaba Motel and has a very deep woods, cabin-like atmosphere (consistent with Escanaba). The town of Escanaba is in Michigan's Upper Peninsula. Commuting between the two would be about a 10-hour drive.