You Suck (Vampire Trilogy, by Christopher Moore. I didn't realize that this was a sequel or part of a trilogy when I bought it, but I read it anyway. Moore is sarcastic and hilarious and I love his books.
Where the Sidewalk Ends by Shel Silverstein, and all of his other children's poetry books. I got this as a birthday present in grade and read the "Sharp-Toothed Snail" poem for a school talent show! The girls love these poems too.