One of the sillier ways to do journalism is when companies don't bother to check if you're a journalist before running experiments on you. It's not big, and it's not clever, but it's quite satisfying to realise that you've been given a story just by being a normal customer of a company.
This article saved me £2 a month as I was paying for Spotify Family for me and my partner, and didn't know that Duo existed. Thanks Alex!