I just finished reading Bossypants, which once I started I couldn't put down. It also led to me being very embarassed on the subway... since I would frequently laugh out loud while reading and startle the person sitting next to me. I kind of like to think that Tina Fey would be proud of this fact.
Buy it, read it. It's so enjoyable.
Also, Michelle Obama bustin' a move? I love it a little to much.