How do you carry extra fuel in a wagon?

[Dirt lover]

How do you carry extra fuel in a wagon?

 

[Jeep Dave]

I use some rotopax mounted on the roof mate

 

[OverlandG-wagon]

I use some plastic jerry cans mounted on the rear door mate

 

[Sam Mills]

I use steel jerry cans on the roof

 

[Toomuddy]

I have dual fuel tanks mate, the easiest and safest way by far. Also the most expensive.