The Denomination Effect: Why You’ll Spend Five $20s but Not One $100 Bill
Hand someone five $1 bills and they’ll spend them. Hand the same person a single $5 bill and there’s a good chance it stays in…
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Choice Architecture in Personal Finance: Out-Design Your Own Overspending
The average American spent $254 a month on impulse purchases in 2025 — roughly $3,045 over the year, according to Capital One Shopping’s consumer research….
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Gambler’s Fallacy Investing Mistakes: Why the Market Is Never “Due”
A roulette ball lands on black six times in a row, and the table crowds with people betting red — because red is “due.” Swap…
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Sinking Funds Categories for Beginners: The Master List of 21 Funds (and the 6 to Start With)
American consumers planned to spend an average of $902 on winter holiday gifts and celebrations in a recent National Retail Federation survey — and yet…
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Estimated Tax Safe Harbor: 100% of Last Year or 90% of This Year?
The IRS penalized roughly 14 million taxpayers for underpaying their taxes during the year in fiscal 2023 — up from 12 million the year before…
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Home Office Deduction for Side Hustle Income: What Qualifies in 2026
A 150-square-foot spare bedroom, used only for a freelance design business, is worth $750 a year under one IRS method and $2,064 under the other….
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Buy Now Pay Later Hidden Costs: Why the Real Damage Isn’t the Interest Rate
Sixteen percent of U.S. adults used a buy now, pay later loan in the past year, and on the standard pay-in-four product the interest rate…
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The True Cost of a Bigger House: What 508 Extra Square Feet Costs Every Year
Five hundred and eight square feet. That is the gap between the median new single-family home completed in 2025 — 2,142 square feet, according to…
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Mega Backdoor Roth, Step by Step: The $47,500 of Roth Space Most 401(k) Savers Never Use
In 2026 the IRS caps everything that can land in a single 401(k) account — your deferrals, your employer’s match, and any after-tax dollars —…
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Decoy Effect Pricing: The Bias That Barely Replicates (And Still Costs You Money)
Across 91 separate attempts covering 23 product categories, marketing researchers Sybil Yang and Michael Lynn could only reproduce the decoy effect 11 times. That is…
