In my country you can apply for social housing online - but you never know when new listings will be published. So I built a scraper that used a telephony api to give me a call when a new listing was published. On a Friday night I got my automated call, looked at the listing and immediately booked a place on the queue. I was second. But the first person must have said no to the flat, so I got it. Paid very low rent for the few years that I had it. They added a captcha soon after.