I want to do extended road tripping, but I am only free during the summers, and it is annoying how the price of gasoline increases as well. If I could, I would buy a lot of gasoline in the winter and store it for the summer. However, I understand that this is not practical.

Is there a way I could do a similar thing, but not have to store and transport large amounts of gasoline?

I understand that in the investing world, there are futures and derivatives, and I could potentially buy those instruments in the winter and sell them in the summer then use that money to buy gas at the gas station. How practical would that be if I am simply trying to save on the summer price fluctuation on gasoline?