July 1, 2026 · 10:42 AM
The 10-second unit price test
A quick grocery-store habit: compare the usable unit price before trusting the bigger box.
The 10-second unit price test is a grocery-store habit for catching bad "deals": compare cost per ounce, sheet, load, gram, quart, or piece, then buy the cheaper option only if you will actually use it.
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