I send my cards the day after I finalize the trade in a clear sleeve in a top loader through standard mail. In cases, where the trade value is high (over $20), I will provide a tracking number  I also reinforce the envelope to prevent tearing or damage to the card(s).

I also have a lot of random commons/uncommons/bulk rares that I don't have listed, but if I see it on your wishlist I can include it in the trade.

Thanks!