The product was accounting software, and the company was IRIS, the UK's market-leading providers of accountancy technology.
My usual blog remit involved writing technical, dry copy relating to a software update, some new accounting regulation or our latest webinar.
This day, I was given carte blanche to write about whatever the hell I wanted, just so long as it had a tenuous link to the company's wares.
The resulting blog post was the most read of all time in IRIS's 40-year history. (Blogs, admittedly, weren't a thing for the first 20. Nice soundbite though, innit?)
As to its content? Well, see for yourself.
Sadly, I had moved on to greener pastures by April 2017 and never got to write a follow-up. But it remains an example of how allowing creative freedom out of its box every now and again can produce surprising and positive results.