This question has probably been asked, but I can't find it, exactly. I'm a bit of a noob, and am unclear on some of the terminology.
How do you combine all adjoining objects of the same color, all in one fell swoop? This is different from "Grouping" them, is it not?
Perhaps some explanation is in order. I did a Live Trace of an image that had been printed slightly off register. I changed the color of all these small, off-register objects to match the background, so that they "disappeared." It seems to me that it would be a good idea to combine all these very small objects into the one, large, background object, to reduce the complexity of the image.