Klepper was really easy back when I took Intro Econ. I only made one mistake where I copied down a table slightly wrong at the end of class one day, and that table wound up being on the test, and the break point for what peoples' behavior would be was right where I made the mistake in my notes. I wound up getting something dumb like a 50% on that test because of it, which was the only grade I had the entire class that was below an A. Sadly the TA didn't believe me, so I wound up with a B.
I also found Chem II to be really easy as well as Intro to Philosophy.