Things We Forget is a blog made up of sticky notes, left by a mysterious writer around the world, that give bits of advice and sunshine to the lucky people who find them.
The writer, who calls themselves 'J.J Pen', wrote the first note in the backseat of a taxi for the benefit of the passenger next to them who was having a bad day. It said 'Never Give Up'.
This secret writer has put effort into making people's day a little bit special
Now, the post it notes are becoming a little bit famous, with a blog and a book devoted to cataloguing the different notes found around the world.
We love the inspiring messages and the effort this secret writer has put in to making people's day a little bit special.
Here's hoping we see one stuck on to tree on our way home...