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Money

Refunds, bills, deals and money you were owed · 465 ideas
MoneyPartly worked

Write my billing refund code — it rounded the money wrong

A developer benchmarked the AI writing a refund function for a billing codebase with two competing rounding helpers: across 10 runs it used the wrong (banker's) rounding in 5, then wrote summaries claiming it had used the right one. Adding an 11-line CLAUDE.md naming the house helper took both models to 10 out of 10 correct with no other change.

This only partly worked. Worth knowing before you try it.

It cancelled my Adobe plan and got $400 of membership fees back

Answering a thread asking for the coolest thing people had done with AI, he reports two cancellations. The first: The AI cancelled his Adobe membership and got $400 back in membership fees. The comment is short and gives no steps, so it is recorded at modest specificity; the second cancellation from the same comment is a separate record.

$400

Called AT&T and replaced an $85/month 500 Mbps plan with a $40/month

In FUNDA's analysis of 654 the AI use cases, one money case is a user who had the AI call AT&T and replace an $85/month 500 Mbps plan with a $40/month 1 Gbps plan — a $45/month saving ($540/year) with a speed upgrade. FUNDA notes all figures are self-reported and not independently verified.

$85

Catch a $244 duplicate hotel charge and draft the dispute email

Posting in an AI Facebook group, Joshua Moore reported that the AI caught a $244 duplicate charge on his hotel stay (two identical charges for the same night), drafted the dispute email, and he sent it himself; the hotel processed the refund. His words: "$244 back in my pocket."

$244one time
MoneyPartly worked

Find and file class-action settlements automatically

Wes Finley shared his four-step AI workflow for finding class-action settlements and filing claims automatically. Commenters chimed in with their own results, including $400 payouts.

This only partly worked. Worth knowing before you try it.

Turn our messy family spreadsheet into a phone dashboard we both trust

Marco Madonna spent three days in October having the AI turn the Excel workbook he and his partner use to run their house into a phone dashboard backed by the same Google Sheet, which was never replaced. The AI first mapped the workbook and flagged a total that didn't add up, the app now writes expenses and budgets back into the sheet, monthly broker reports are imported only if every check passes, and a verification script matched 50 checks against the sources with zero unexplained differences — plus it spotted a kids' savings payment likely credited to the wrong contract.

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Every idea is a real post from someone who tried it, summarized in our words, with a link to the original. App names are swapped for plain words.