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Money

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

Negotiated a monthly internet bill from $100 down to $85

Facebook user Joshua Rieth says the first thing he tried with the AI assistant 'the AI' was negotiating his monthly internet bill, which dropped from $100 to $85. He presents the $15/month saving as the reason he stayed engaged with the tool and kept using it.

$100
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.

The AI runs his Facebook Marketplace sales inside rules he set

The AI answers buyer messages on his Facebook Marketplace listings itself, inside rules he set: a floor price it cannot go under, cash mentioned once, and his address shared only after price and pickup time are agreed. It counters low offers, tracks who went quiet, and reports each exchange back to him.

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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.