Exercise 5: Spotting
Using the Spot Removal tool in Camera Raw remove all the dust spots in the image.
Selecting where the dust spots are:
I think this technique is a clever way to make sure the picture has as minimal 'problems' or 'imperfections' as possible before you take it into Photoshop. I think it makes a drastic difference to the image, even if people wouldn't have noticed the dust spots in the original.