We had all these issues with eBay and PayPal on US sales we pay almost 10% right off the top in fee's and more on foreign Credit cards.
We bought a postal system called "Dazzle" cut our rates way down and allows us to ship 1st class instead of GSP or Priority International. Cuts the overall cost drastically to the point where we now offer Free Shipping on our small parts to Canada, Australia and most of Europe. What used to cost $10-$15 is now $2 and change for a padded envelope.
