You walk into the grocery store for a gallon of milk, maybe a loaf of bread, and expect to leave in five minutes. Then you spot a sale on snacks, a seasonal display near the entrance, and a few things you suddenly remember needing. By checkout, your quick trip has turned into a $100 purchase, even though you never planned a full grocery run. This experience is not always about poor budgeting. Grocery stores use product placement, promotional displays, and other merchandising strategies that can encourage shoppers to add items to their carts. Understanding these tactics can help you recognize when a purchase makes sense and when it is simply an unplanned expense.