Another Monday Morning

Ah, Lone Pine Mall. You have many memories of being dragged here by your mother for back to school clothes shopping. She always made you get an ugly, itchy argyle sweater that you never would wear. Today, you are here of your own free will, to savor your day of freedom.
The mall has many stores in it, which stock every variety of consumer item except the one you are looking for. Which store will it be?