[rp-ml] STL settings

Can anyone point me to an online tutorial for setting triangle sizes in
STL files?
I seem to manage to produce very large files for small physical
objects. Me gut feeling is that I could reduce the file size, but I
need a handle on just how far I can go without compromising the quality
of the finished object.

-- 
Bill Bedford
"Man is an animal suspended in webs of significance he himself has spun"
                                                                                      
-- Clifford Geertz