@Flick My car just doesn't fit very well (I'm 6'3") but I'm not in it too much, it's mainly my office desk and at home where I have to really watch it. I can watch my posture a lot easier at work. At home it's too easy to sink into the sofa with the dog sleeping on me (yes I am blaming the dog)
@sullybiker When I started doing it, I was driving about forty minutes four or five days a week, and it did make a big difference. Can’t hurt, right?
I have great posture now, even with lolling on the sofa bedecked with dog.