One of the main reasons i like paypal payments is that i didnt have to go to the PO and you get a delivery confirmation for cheaper. On the USPS site you cant print first class labels.
Well, i found a way around that on paypal.
If you get a payment coming in the mail and ya want to print out a label on paypal, go to any OLD payment you have received. Click "details" THEN scroll down to "ship another". After that page comes up, click "edit address" and type in the info for where ya want the package to go to and thats it