My chair doing me no favours.

As I am trying to be be straighter, it has occurred to me that my chair is not helping my stature, as the back of it leans backwards, so what I have now done is roll up two towels, and placed them to cushion my lower back, which makes me sit more upright, this is proving to have a most possitive effect although it has taken a day to re-adjust to it, my chest is now further forward than my tummy, and that is a first in a very very long time.