Advanced Subroutine Techniques Feb 23, 2006 by Rob Kinyon In “Making Sense of Subroutines,” I wrote about what subroutines are and why you want to use them. This article expands on that topic, discussing some of the more common techniques for subroutines to make them even more useful. Several of these techniques are advanced, but you can use each one by itself without understanding the others. Fur