Daytripper tells Bras's life story through a series of vignettes, and at the end of each one, Bras dies, usually in some horrible, tragic fashion. And then the next installment begins, and Bras is alive again, and his terminal accident never happened, and his life proceeds.
With each iteration, Bras has the chance to come closer to doing the right thing -- for himself, for his lovers and friends, for his family, for his son -- and with each turn on the wheel, Bras learns something new.
This existential device works extraordinarily well, making for a story that grows progressively more moving with each chapter. Somehow, the impacts of the inevitable deaths are never diminished through repetition, but rather increase in their tragedy.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.