Rain to wash it, wind to dry it.
This is also Hayesey's method.
Infact their Polos only get washed when I do it! Although Hayesey did manage to wave a sponge over his last time it was down the unit...
I use Zymol shampoo (smells nice) and either Tech Wax, T-Cut Colour (tornado red owners know it
) or if I've got enough time, Meg 3 stage after a claybar. I find autoglym stuff is too dusty.
Meguiars bumper shine is the dogs dangalies! I use a silicone blade on windows and big body panels, then a proper decent chamois soaked in boiling water for a while.