If you haven't read any Kurt Vonnegut, go get jailbird. He wrote a lot of bizarre, non-sequitur kind of stuff, but it all ties in so beautifully to Everyday Life. For the most part it's light-hearted, but be careful. The Sirens of Titan is one of the saddest books I think I've ever read, and probably the only one he's written that I'll never read again.
Also
Enchantment, Orson Scott Card
Just about anything by Tom Robbins (not B Is For Beer, though)
Christopher Moore has lots of fun, easy reads
And, as so many have said, Douglas Adams