Thanks for the opinions you guys. I think I may be lenient with regard to feedback, especially considering my only neutral/negative feedback were 2 Neutral feedback left by the same buyer. I sent 2 T206s to Canada in a padded envelope, with 2 thick cardboard pieces to hold the cards, and the toploader was taped just in case. I charged 3.30$ shipping, and it cost me 5$. That wasn't the issue though. The issue was that each card did not have it's own toploader. I put them each in their own sleeve, and then placed both in one toploader. I wasn't contacted beforehand about this crazy preference, nor after he received them.
Lance: I do understand about the insurance cost (when actually obtaining a policy), but my response to him regarding that was he was implying that this was a per item cost. If he has chosen an insurance policy that charges him those rates for each individual item , well, that might not be very smart, and it's about the worst insurance policy I've ever heard of.
To make sure I wasn't wrong on this, I just checked and subsequently discovered it was a blatant lie.
https://www.shipandinsure.com/rates_calculator.aspx