I usually have a couple of books lying around and I pick up the one that I'm in the mood to read.

I too prefer reading nonfiction. But every now and then I like to pick up a novel as well. Right now I'm reading Shogun by James Clavell, and it's such an awesome read. The characters, setting etc. in this book is so real that it almost feels like you're reading a nonfiction book. And you'll get to learn some Japanese in the process as well! Give it a try.