1) To cut the shrinkwrap, vigorously rub one side of the disc on the corner or leg of a desk (preferably a metal one). Don't rub the face of the case, otherwise you'll scratch it. 2) To remove the barcode sticker binding the edge of the case: pry open the case at the hinges, then use the leverage to pull the sticker off in one long, quick movement.-Quick Ways To Open a Shrinkwrapped CD (and some other great misc. tips from Steven)
Sticker removal step-by-step instructions.