There are levels of nerdy sadness, and then there is writing the date on the underside of a tissue box.
I had a theory that tissues in front of a class would be used more quickly than tissues at the back of my class. I had noticed that children would spot the tissues and decide they needed to blow their nose, rather than the other way around.
I experimented with tissue box positions and discovered that a box at the back lasts SEVEN times longer than at the front. Seven!
This is a work in progress - I'm currently experimenting with rulers Blu-Tacked across the front of my board, in a bid to encourage my children to use them more. It seems to be working... but they are also stealing a lot of Blu-Tack!