This is the way we have it, too. I would like to add yet another advantage of this approach: You can designate bags in your cart to where the items go in your house, e.g. for fridge items, bathroom items, dry items, frozen items. When you're in the store, you sort things right then and there when you pick them of the shelf; when you get home you just drop the bag off in the right room, no more running back and forth.