A return address is vital for all packages sent by sellers! That way, if the address given by a buyer is incorrect (or you transcribed it incorrectly), you item will come back to you and you can fix the error. Nobody wants to be branded a non-shipping-seller and this is an almost foolproof way of preventing parcels going astray.
The easiest way to write your address over and over again is to get a self-inking address stamp. These stamps are available at Office Works or like stores and take about 1 week to make.
All you do is fill out the form with what you want on the stamp and they'll make it for you. These type of stamps are much more reliable than the ones you make yourself from the kits and don't cost any extra. You can get different coloured ink pads and the pads are replaceable or re-inkable when faded.
Don't forget to put your state and country on the stamp too especially if you are thinking of selling internationally!!