=>What sort of software do you use, and on what platform?
DC2, a CAD program very like Autocad, running in DOS. I've also used miscellaneous bit-map drawing programs that come "free" with Windows. Those ar nearly useless IMO.
Some general observations:
a) If you can't draw with paper and pencil plus the usual tools (triangle, scale, etc), you can't draw with a computer either. That's the most important single fact about drawing programs.
b) For simple quick and dirty jobs, paper and pencil is faster than a computer. A computer is good when you have a lot of repetitious stuff, such as 36 windows on the side of low rise building; and it's good for complex drawings of complex machinery, etc.
c) For most people, the learning curve for a CAD program is steep - so steep that unless you will do a lot of drawing with it (ie, a drawing a week or more), you will be relearning the program every time you start it.
d) The printer will produce a nice, clean copy of the drawing - cleaner and neater than I can do it with paper and pencil, anyhow. So the CAD program is sometimes worth using even for simple drawings.