Actually you didn't offer an alternative (the closest was protecting my stuff from siphoning) that fit. After watching the seasonal nature of gas prices my wife and I decided that we could capitalize on cheaper prices by buying extra gas when it was cheap and transferring it to a tank on our property. This way when gas is expensive we're not affected by it as it will most likely come down in a reasonable amount of time before our extra gas is gone.

If you look for used tanks (check farm sales/auctions) you can buy them cheap enough where they'll pay for themselves within the first year.

If you really wanna have some 'fun' research peak oil.