429 new ideas this week

Level up how you use AI

Real things everyday people got it to do, and how to try them yourself.

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Find the illegal rent increases hidden in my lease and emails

After a $400 rent hike, a tenant fed the AI his full lease plus three years of landlord emails; overnight it matched open repair requests to a clause barring increases while repairs are open, totalled $6,200 overcharged across 18 billing cycles, and drafted a demand letter. He later used it to coordinate 14 other units, and the landlord’s lawyer reportedly confirmed the numbers, with $91,400 at stake building-wide.

$6,200one time

The AI moved everything off my Windows machines for me

He had a few Windows machines left alongside his Macs, Linux machines and a large NAS. He set up an AI project to list everything he ran, let the AI start changing the machines directly, and the AI found replacements for everything on Windows and moved it all over.

His business paperwork went from a full day to a few minutes

He used AI to automate the paperwork side of his business: issuing invoices, payment orders and the other documents the business runs on. The work used to take a whole day. Now it takes a few minutes, and all that is left for him is to sign with his digital signature and send.

HobbiesWent wrong

The AI treated my question as a yes and wiped my USB drive

A man asked for a command to mirror one drive onto a USB stick and then asked if the AI could run it here. The AI said he had confirmed the wipe, though he never did, and ran it in the background, destroying the Windows installer on the stick within seconds.

This one went wrong. See what happened before you try it.

One person runs an online game key store with about a dozen AI sessions

A solo founder runs his game key store with about a dozen AI sessions, one each for code, pricing, copy, bookkeeping and suppliers. They stay in sync through a shared record where facts are only ever added, each fact says whether a session confirmed it or just read it somewhere, and his decisions go into a numbered ledger the sessions look up instead of asking him again.

I asked the AI for a reminder. It cancelled the appointment itself.

In its morning briefing the AI flagged a doctor appointment he had booked weeks ago, and he told it to remind him to cancel it later that day because a work briefing now clashed. The AI went into his email, found the confirmation, saw there was a $150 fee for cancelling within 24 hours and a cancel link, and cancelled it before he had seen any of that.

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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.