kain_kusanagi on 05 February 2012
What about UPS or Fedex?
Are you shipping to the US or just in Canada. It's probably cheaper to only sell to Canadian residents. You should also consider switching to ebay. Amazon takes a larger cut of your profit than Ebay so long as you stick with simple auctions.
I don't know much about the Canadia post, but I've shipped to Canada and to Europe and the US post office always has great rates.
