Essential Concepts: A planned purchase list separates desire from spending by recording nonessential items, costs, reasons, and buying conditions. Regular review supports intentional shopping, reduces impulse buying, and helps you buy less.
Essential Concepts: Sale shopping saves money only when a discount applies to something you already need. Compare the sale price with the cost of buying nothing to avoid false savings.
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Cost per use helps compare quality vs. price by dividing total ownership costs by realistic expected uses. Essential Concepts: Pay more only when durability, repairability, or lower operating costs justify the premium.
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