
imp:
I totally agree with Romeo on this as well.
I try to keep the fuel so that is always enough for an emergency, like rushing to buy milk, or going to buy bread, or visiting my mother that stays 3 blocks away, or just driving around the block for no reason...
point is, I love driving my car for no real reason at all, I just love driver her, so I won't forgive myself if I wan't to go driving "just because", and there is no feul left.