Remember: elegantly slide off, athletically jump on.
Did I ever tell of when I was still practicing this, after getting the saddle height advice?
Well, having set the saddle right, of course I couldn't reach the ground anymore, while sat on it, not even on tiptoe.
So, there I was approaching traffic lights, they went on amber, I stopped the bike just that millisecond to early, before I did the sliding down.
My wee legs spun aimlessly in the void, I fell sideways with the bike