If you haven't guessed it by now, I'm working on the drawings section of the book.
What I want to know now is how much you use layers, and what you use them for? Line styles? Hidden lines? Printing properties? How about line colors? Do you put different parts on different layers in assembly drawings?
And if you do use layers, did you come from an AutoCAD (or straight 2D in general) background, or have you been forced into this practice by someone with an AutoCAD background?
Anything you can say about how or why you use layers will be helpful to me (and hopefully helpful to others).