Chris Illuminati, from the US, quit his job after the birth of his first child. Explaining how the notes started, he wrote on his blog: “Still home on maternity leave, my wife left me alone with my newborn son for the first time.
“She reminded me, again and again, of all the duties I was to perform while she was gone. ‘I better write this down,’ I joked, and grabbed some post-it notes and a black Sharpie.”
As a joke, Illuminati started to write down even the simplest of tasks and posted his notes on his Tumblr account, Message With a Bottle.
He said the notes “immediately struck a nerve with readers” and he received emails, Facebook messages, comments and tweets from mums and dads.
Eventually, the notes turned into a website where he now blogs about life as a stay-at-home dad to two little ones.
Illuminati has continued to share photos of the notes he writes on Instagram. Here are a selection of our favourites.