Book 1 · Smart Shopping

Cost Per Use

What a thing really costs isn’t the sticker — it’s the sticker divided by how many times you’ll use it. The dearer option that lasts often wins.

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Enter a price and how many uses you expect, then press Compare.
From the book — Bonus chapter. Cost per use = price ÷ the number of times you’ll actually use it. A $120 coat worn 200 times costs 60¢ a wear; a $40 one worn 20 times costs $2. Spreading the price across real use is the honest way to compare a cheap-and-often buy with a dear-but-lasting one.

Be honest about the number of uses — that’s where the answer lives. Everything stays in your browser.