You think you've got it bad with the Blackberry Crush? Try Black Sand Pearl; it's even worse. I can't tell you how many times I've washed my car in the ~2 months I've owned it. In fact, I just moved my car about ten feet because it was parked under a tree on my street overnight, and now it's covered with dust, pollen, little twigs and other "tree detritus".
Ideally I would like to keep my xB looking showroom-clean, but I am quickly adusting to the reality which is, if it's going to be parked outside, it's going to look like crap most of the time, except for the few hours right after I've washed and/or waxed it.
I have also noticed that it seems to be worse when the temperatures are mild and condensation and dew accumulate on the car overnight and early morning. Then dust and other pollutants get captured in the condensation and, as the moisture dries in the morning hours, those dust particles and other pollutants adhere to the car's surface. Very annoying.
I'm 40 years old and have owned several cars, but for the first time I am learning what "clay barring" is all about. A testament to how much I love this car...