Dependent on your sense of humor, but almost anything written by Dave Barry makes me laugh no matter how many times I read them.
His best, in my opinion, is 'Dave Barry Slept Here'. It is a fractured look at American History written, as he puts it, so that he "can sell it to schools and become so wealthy that he can routinely give out motor yachts as tips in restaurants." Not a necessary requirement, but the more you know about US history the funnier it gets.
His powers of observation on everyday events and the twist he puts on them is nothing short of mind boggling. I honestly don't know how he comes up with some of them. Anyway, if you like a crazy, sometimes obvious spin on just about everything, I recommend anything he has written.