At work we have a company that comes round and cleans your car in the car park... £7 will get a Exterior Clean and Shine... doesn't sound too bad... £50 will get a full valet inside and out..
But they claim to use no water at all in the cleaning process...
Their website is
http://www.ecodrift.co.uk/
Can they really be as good as they claim? or are they going to destroy the paintwork of the car if I were to ask them to wash it? - have seen them cleaning a few brand spanking new BMW 5 Series cars as well as others... so they can't be *that* bad can they?