plain and simple if you dont read anything else in this guide read this:

get a delivery confirmation receipt on every item you ship out!

the only way you can fight a dispute with ebay or paypal is by having a delivery confirmation number with every item you ship out. without this number their is nothing you can to win any dispute on either site. but with this simple (usually small) fee it can save you a ton of time and worry in these desperate times.

simply put: get the delivery confirmation number please!