Meet Tony Phoenix -Morrison. As far as I know there is no insulin in that fridge. He is simply running with a fridge on his back (you can check his story HERE, that is where I borrowed this photo from).
The length of our stay away from home determines the amount of insulin I pack. If it is a week or two (anything under a month) I do not worry about refrigerating the insulin. It is meant to be used within the month once it is out of the fridge anyway, so I just keep it away from direct heat and make sure I do not leave it in the car in the sun.
It is a different story if we pack for 3 or 6 months away.