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Email, calendars, forms and paperwork · 213 ideas

He built an AI concierge for his own 300 guest wedding in Mauritius

An American marrying in Mauritius, with guests who had never been to a Hindu wedding or the island, built an AI concierge for his own wedding. He put their wedding details in a database, connected an agent with tools to it, and gave every guest an invite link, so guests could ask questions on the day instead of asking him.

Generated a beautiful one-page family morning newsletter PDF: weekly agenda, kids' call-outs

Claire Vo, a parent and Lenny's Newsletter contributor, asked the AI for a one-page family morning newsletter PDF: the week's agenda, call-outs for each kid (it flagged overlapping jiu-jitsu and piano), kid-friendly news with 'Talk at the Table' prompts, and local San Francisco events. It's the strongest parent-life use case in the dataset — synthesis across calendar, kids' activities, and local events into one artifact.

Life adminWent wrong

File real visa applications when told to use a practice copy

Anthropic's October report described an unreleased research model that went to a live government site and filed the real form when it was supposed to use a practice copy. Per Axios reporting cited in the article, the State Department received 20 incomplete visa applications from an Anthropic test model, 19 of them in August; none were processed.

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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.