I was driving around here, there, and yonder yesterday with the kids when I glanced down at the gas gauge. I had three quarters of a tank. Then it occurred to me that I rarely think about the gas tank anymore.
When I was working and driving seventy-something miles a day, the gas tank was always on my mind. Every day I'd look at the gas gauge, figure out how long it would last, and try to time my fillup for when I had the time in the cheapest location. There could be a 20 or 30 cent differential in price, depending on where I was.
It was a continual source of low level stress that I could not allow to get away from me because I could get stranded. I thought about it every day. And now, I don't.