I have come to notice that most American users of this trading platform has fear or lack of information on international trade, i've traded with people who spent lots of money on shipping costs when they could only spend a single dollar.
I leave a video of how international trade, it may be that with this more people can get into Worldwide trades.

https://www.youtube.com/watch?v=-gSz7REXXbM

yes! we have a trade that is nearly complete! One worldwide stamp, or 3 forever stamps (if your lazy like me) gets the job done for an envelope