# File lib/amazon/shoppingcart.rb, line 277
    def retrieve_items

      # We should theoretically be able to just 'return self' here, but
      # let's actually query Amazon and get the contents of the cart, just
      # in case some unknown factor has caused it to diverge from what we
      # think the state is.

      url = AWS_PREFIX + "?ShoppingCart=get&f=xml&dev-t=%s&t=%s&sims=true"
      url = url % [@token, @id]
      url = check_cart(url)

      @page = search(url)