Because I know every time www.tpcc.com.au return one of our cartridges they also tape a little packet of chocolate inside the package and today I got the cartridge returned to me (which I took as carte blanche to eat the tiny chocolates all by myself).
Now, I know this is only a tiny thing, and it's not the highlight of my day every time it happens - but it always brightens my day significantly.
And what does this highlight set them back? 20c perhaps? 20c to ensure that I am ALWAYS happy to see them. 20c to guarantee that I'm always far more excited about my chocolatey treat than I am the $70 invoice that came with it.
That's a fairly good return on money spent if you ask me.
To sign up to Kirsty's weekly email head to: www.kirstydunphey.com