Logical Fallacies

I never realized how many ways an argument could be weak. After reading this week's chapters in Thank You for Arguing, I realized that there are many logical fallacies being used everywhere. I'm sure that most people use these fallacies everyday and fall for them just as much. When do people really look at their arguments to see if they are committing one of the "Seven Deadly Logical Sins?" Although it is very interesting to understand these logical fallacies and be able to argue effectively, do most people even think about their arguments to such an extent?