Now I rarely go to Milton Keynes, I have to wash the car myself. 1 bucket and a 49p Tesco sponge, and some turtlewax (because a few years back, Halfords had it on a silly offer, and I got loads. And they both get a wash annually, whether then need it or not.
Brakkers is devoid of eastern europeans, so no sensibly priced hand car wash places here.
I did do the lazy Autoglm 3 part Polar wank on mine just before its MOT. As I did no other real prep, I thought I should present it clean!