Most peculiar!

I have been racking my brain to figure out how an automated post box works and it still evades me!
I suppose all will be made clear eventually but in the meantime we can still use the little post office within the adjacent shop.
Another busy day, three dog walks, a litter pick, cut the grass and vacuumed out the car - again!
Hopefully the plumbers come quickly tomorrow morning to fix our leaky water supply pipe, this plumbing carry on has gone on quite long enough!