shooting with foam doesnt work well, get a bucket and put it on a set of casters, a capful of car shampoo and a gallon of water, now get a garden water pipe and you need an attachment to put a hand valve on it.
Wet car with water
wash the car in 4 quarters, apply soap with sponge, MF ball etc to remove dirt - rinse with water, move onto next quarter repeat.
Takes 15 minutes. Use a damp MF towel to dry off body and newspapers to finish off the windows
I would suggest to get some very HD wax like collinite and apply it to your car's finish, it will remain there for about half a year - Makes car washing easier for the next time too.