This post was inspired by the continued poor and already debunked arguments put forward by creationists - notably on the comments to this post by me, and to a post on Neurologica blog - but also elsewhere. The only remarkable thing about the creationists' arguments is it's remarkable how they continue to parrot the same arguments after they have been debunked years ago. Anyway, I've had some fun recently playing ID Creationist Bingo. You check off a square every time the relevant dopey argument is presented. You win when you have a straight line of five - horizontally, vertically or diagonally. The "JOKER" square can either be a free square, or you can reserve it for any new ludicrous argument presented (as long as it is presented with total sincerity), or any argument I've missed.
If you don't know what all these creationist arguments are then you haven't spent much time talking to creationists on the web. If you don't know how to debunk any of them you could go to Talk.Origins Arguments against Creationism and their 29+ Evidences for Macroevolution, read what Steven Novella has to say or browse Pharyngula.