I had to google 'frogging'. What a revelation! I've done HEAPS of frogging without ever knowing that's what it's called.

I was also interested that you mentioned 'blocking'. I sort of knew, intellectually, what that meant, but have never done it. I looked up a couple of explanations and should probably do it. I think my new yoga strap could benefit.

Apart from learning all that interesting terminology, the doily looks nothing short of magnificent!