Encourage deeper thinking about spending, pricing, and advertising tactics. 📌 Topics Included: • Estimating costs quickly estimating costs • Multi buy vs single item decisions multi buy vs single buy • Doubling price vs doubling quantity price doubling comparison • Rounding for mental math in shopping price rounding strategies • Identifying overpaying overpay analysis • Cost per use comparisons price per use • Percent contribution of items in a purchase percent of total spending • Unit price mi