Recently I cleared out my stationery stash in a bid to be more organised. I was being as ruthless as I possibly could and throwing out anything that didn't work or wasn't of use to me anymore. I realised I had A LOT of yellow pens. It occurred to me that they were from all the rainbow pen sets I’d bought in the last ten years but what on earth did anyone use a yellow pen for? You can’t write with them because no one can read it, you can’t draw with them because they are so transparent you might as well be using water.
So, what are they for? I’ve kept them all just incase I find the answer.