seller's listing? I am listing a game to sell (my first time as a seller) on Ebay. I want to specify a flat shipping cost to Canada (domestic), and one to the States. Several options pop up of which shipping options are available, and I am looking for the one which will ship a padded envelope with game case inside for the cheapest. Which of the following would I choose: Standard Delivery, Canada Post Lettermail (assuming this won't work for something as large as a DVD-sized case and envelope), or Canada Post Regular Parcel?