This is something so small, I don't even know if it is worth mentioning. It could all be psychological too, rather than physical.
But so far, every time this week, I have found it easier getting up out of the car.
Normally I have to swing my legs around, out of the car. I prop one hand up on the steering wheel, the other on the frame of the door and give myself a good heave - including a 'hnnnhhh' sound effect at my exertion.
This week, for the first time in a long time, that hasn't happened. I've swung my legs out, and used my arms, but now it's more of a graceful sliding up and out.
And I'm confident this is one sign of things to come.