So for a while now I've had this nagging feeling that I REALLY should be using "m". So far I haven't used it, I pass all the variables I need around all over the place, and I'm getting kind of tired o...
The latter. It's bad programming style, and avoiding globals is one of the reasons Object Oriented programming was invented. I discussed this previously here. Other than poor style and difficulty in maintaining the code, it's not going to break anything if you use globals.
