When selling, it is VITAL that when you ship, you should use some sort of online tracking information.

When you print a label through usps, it AUTOMATICALLY gives you a tracking number. I believe ups does this also.

If you DO NOT use a delivery confirmation, whoever you send it to COULD say they never got it and file an Item Not Recieved claim against you. If you don't have a delivery confirmation number to give the investigators, then you will automatically have to refund them. If they paid through pay pal, the payment will come directly from your pay pal account.

This is one of the BEST tips i have! I've learned from previous fraudulent buyers, that just because you have been paid, doen't neccesarily mean the transaction went well and the money is yours.

Protect yourself. There are always good people in the world, but unfortunatly, there are just as many people trying to get something for nothing.