A full tank of gasoline

One of the things I learned after the March 11 earthquake is that it is surely better to keep a full tank of gasoline.

Before then, I'd always let the tank run down to almost empty, and it was just pure luck that I'd filled the tank only three days before the disaster.

Since then, when the tank indicator drops to 3 bars from the top (so about 3/4 full) I drop by a gas stand on my way to work and fill it up again. It means I have to go every few weeks, and I dislike self service gas, but at least nowadays I never have to worry that I won't have gasoline if any trouble strikes in the future!