Clay bars.
I got the auto glym clay bar kit for xmas last year and i decided to use it the past few weeks on my car and the wifes car. My cossie was painted last year and there wasnt really alot of dirt in the paint. I did the wifes fiesta today and i couldnt believe the dirt that the clay bar brought out of the paint. The dirt was like a brown colour. It took a few hours to do the whole car. I would reckonmend a clay bar kit to anyone. I would put some pics up if i had proper broadband.