So for everyone who came today, thanks for listening! Hopefully that made sense for everyone. Here's a link to a handy powerpoint that will help you use the dusk mantra tool. It's a little dated but it explains everything pretty well. But here's what you might want to know:
Forced Matte: Object "cut out" of the other objects behind it in the scene.
Forced Phantom: Remove object but calculate reflections/refractions/transperancy as if it were still in the scene
Exclude Object: Completely remove an object from a render
Exclude Light: Completely ignore a light in a scene
Dusk Mantra Tool PowerPoint
If you're rendering that means there will be some baby sitting. That's why I recommend Solitaire to all of you. Here's the time to beat on freecell: (1 min 59 sec)