Bill Ward, of BayLUG/BayLTC has a blog...
This post on track geometry is worth reading. Though LEGO has ended 9v, there is a lot of 9v track out there. As well, the ideas work for their new RC track too.
The images were done with Track Designer but you can experiment with BlueBrick as well.
MichLUG uses some of these ideas (notably the 45 degree curve) but there are others that we don;t use enough of. Myself, I use the 1 straight == 2 curves alignment trick all the time.
