I'll ship 42 cards in two PWE, never had an issue with anyone I trade with. I don't care if I receive 10 PWE in one trade. I just want MY cards. Whatever is cheaper is my route. I got a trade two days ago, 5 cards in a bubble mailer. Trader paid $3.75 to ship. I sent them 18 cards and paid $1.05. Some may feel bad about that but I'm one who don't. Send the cheapest people, we are trading pieces of cardboard. No reason to go broke trading cards. I've had 188 trades since February. I couldn't imagine if I sent out everyone in a mailer with tracking. I do have the total of sending 188 trades (Only one was a bubble mailer), $145 and some change. I don't want anyone to spend more $ than they need too. Including me.