I used to handwash it when living in a house. But now I live in a flat it is too much hassle. So i go to the nearest petrol station and pay for the second-cheapest option once a month / every second month depending on the season. Does an acceptable job apart from the wing mirrors. But it annoys me having to pay 15 quid for it, when it used to be free.
The guy before me today sprayed his car before taking through. It looked like some kind of cleaning solution spray. What would that be about?