Couple of suggestions along the chick lit - -though calling these lit would be a strectch.
Sophie Kinsella wrote a series of books - the Shopaholic Series -- 3 books with the same title character and her trials and tribulations. The books are funny, great characters, you won't grow any brain cells reading them, but you won't lose any either. You will, however, be entertained. She just came out with a new one, thats on my night stand at home. Can You Keep A Secret, that I have heard a lot of good things about.