Bloody hell, has thee won the Lotto 
I wish and I wouldn't be cleaning windows.
To be honest, I've got a dodgy shoulder, maybe from years of lugging barrels and Harris Poles? It got quite severe last year and I had to take a few courses of Naproxen; I needed help taking off my coat it was that bad, (but at work it was fine unless I jarred myself and then the pain was crippling).
There's days when I can put 200 litres through a backpack; and that's adds upto a fair bit of lugging water around.
My shoulder is good now, but if I want to keep window cleaning, I need to work smarter instead of just using brute strength and ignorance.
And I'm sick of working from the family car.
