Books for the Beach -- Any Suggestions?

I'll be out of the office, out of state, and off the grid for the next six weeks (paternity leave + holidays + vacation in TX, PA, and Hawai'i). I haven't had six solid weeks to myself in...well...ummmm...since 1998. Whatever should I read?

My daughter and I are biting off a few pages of Smart Mobs each night. I've dusted off a book by Thomas Jefferson. I've got back issues of MSDN magazine, and I plan to buy a book called Cultivating Communities of Practice that a friend recommended. But this probably won't last me a week on the beach, much less six.

What books do you recommend?
I like idea books. No self-help guides, please. Fiction is okay.