Well, I prefer having a Vendor use USPS, even though I have to wait quite a long time. On the Customs form, they should either mark the real cost of the item (without any shipping or handling), or undervalue it a little so that I save a bit of taxes and they don't run the risk of getting fined, or if it is small, mark it as a gift but don't include an invoice. After all, we all have invoices on the computer.
Just my opinion, of course!