Just a quick note about the excercises (since someone commented).
It's mainly a technique called "jelqing." You could probally find some info about it through Google if you can wade through all the sites promoting penis enlargement. But basically it involves techniques to force blood into the head of the penis using your fingers. The blood in turn enlarges your penis over time.
I've decided to forgo the exercises for two reasons: A) I don't have the time; B) I want this to be a controlled experiment to see if these pills really do work as advertised.
If you want to know more about the exercises, this site may be able to help you.