Costco, while often hailed for being one of the greatest big-box stores in the U.S., is actually, well, full of secrets. The aisles aren't labeled so that customers are kept wandering and kept spending (via Cheapism). Most deals are found in the store's "center court," forcing shoppers to pass pallet upon pallet stacked with items they don't really need. And the $1.50 hot dogs? Those are just to get you through Costco's magical, spell-bounding doors, where you're bound to drop even more money.