Squareup.com provides a free app for the iPhone, iPad and Android that allows you to get paid via credit card for only 2.75% per swipe. That is LESS than paypal, much more convenient AND the buyer’s purchase will be insured (depending on credit card). After you sign up the company will send you a free card reader adapter so that you can being swiping cards. That means when trading items via p2pspot.com you no longer have to deal with cash or checks. I found out about this after visiting my local chase bank — please share your experiences if you use this to make a trade!