![The Man Jar: there'll be shiraz tonight.](/web/20170325115009im_/http://www.smh.com.au/content/dam/images/g/v/3/a/3/4/image.related.landscape.460x307.gv38w5.png/1490248377588.jpg)
Putting a price on happiness, before plastic makes it obsolete
According to the latest figures, cash is on the way out. Where does this leave the serendipity of the $5 note found on the ground? The $20 found in a winter jacket? The bounty of the Man Jar?