A few years back, my car was one of the millions with an airbag recall. For months, they sent letters saying it was my turn, but if I called to book an appointment, they'd say they didn't have the part in for me yet, and I had to check a web site to see if it was really my turn.

So I wrote a script that would poll the web site using curl and notify me via Slack if the status had changed. I put that in cron, and every day it would give me the airbag report.

One day it told me that status had changed, so I called and they booked the appointment.