After a very pleasant flight from Young to Tumut in NSW I discovered that I didn't have my Carnet Cards with me.. So back to Young we go, I'm sure that every pilot has left the fuel card on the bowser before and if you haven't you will... :-) I have now changed my fueling procedures as follows: Leave the multiple card folder inside the Airplane and only remove the one card you need, swipe it and place it into your shirt pocket, hope it works.