I'm sending a letter than will require a signature and must have confirmation/delivery proof. I know a lot of you have shipped items or documents to Canada before, so which method will work for my purposes?
Is it a letter, or a package? Fedex/UPS rape packages that come to us Canucks. As for letters, I think USPS should be fine. Send it International Priority Post or whatever it's called, it'll probably be cheapest.