I don't do homework, I study for exams the class before them, and I get mostly Cs. There's just so much more to learn outside of school, so you have to choose.
Study? I liked walking into a final and having a prof ask me if I was in the wrong room because he had never seen me in class.

Derive a semester of work from first principles, THAT is a test.
I studied for my college physics and chem classes, and math. If other classes count too, then no, I never studied. Keep in mind I'm still graded on homework in all my high school classes
