I've almost given up washing the car. I live on a farm where the driveway and all roads are dirt and dusty. So as soon as I wash it, it's even more dirty cause the dust sticks to it and turns to mud.
When I'm in Murwillumbah, I wash it before I come home, but it's not often that I get the chance.
Sky blue is a good colour. Dirt doesn't show up that easy.