Transparent propane tank

 Images 2006-07 Lite-Cylinder-See-Through This is a long time coming — a propane cylinder with clear walls so you can see how much juice you've got left. I sure could have used this in Rarotonga. Link

Reader comments:

Ross says:

You know there is an easy way to see the level of propane in a current
tank. Just warm up some water and pour it on the side of the tank.
Since the gas is liquid and cool, the water's heat will cause the tank
to form condensation at the current level of the propane. I do this
before any cookout so I can get propane before the guests arrive
rather than the last minute dash.

Al says:

Write the empty weight and full weight on the tank with permanent marker next time you get it filled. When you put it under the barbeque, keep it sitting on top of a ratty old bathroom scale. You'll know precisely how full the tank is at all times.