to return items by mail
1.get your invoice ready to begin your return, have your original invoice ready for inclusion in your return package. make or keep a copy of your original invoice for your records. 2.prepare your package pack your return securely, in the original package if possible, and include your completed invoice. affix your shipping label to the package, making sure no other tracking labels are showing. ship it when your package is ready, do one of the following: for general postal service, go to your nearest post office. for ups, drop it off at your nearest ups location.