Jomarie your granny sounds just like me, I used to watch Eileen Fowler (she was still around not so long ago) and do what your granny did for a few minutes (seconds?) then that was enough! It takes an awful lot of dedication I think to do exercises at home on your own, and even more to get myself up and out in order to go to classes.
moving to Christchurch , Dorset
Dame Jenni Murray died due to dazzling headlights



