Cables, Shifters, and housings; what you need to know.

I have really been trying to use up some cable housing that I had laying around.  I decided to do some recent cabling on my TEAM HBD bike.  However, what no one saw is that I used brake cable housing on the shifter cables.  This is a real big mistake that I don't recommend doing.  Now that I have been taught by my friends and co-workers at the store, use the right housings for the right application.  Here is a point of reference in case you need the information as well.

http://sheldonbrown.com/cables.html