Imo if your gonna ship something to someone make sure you write their addy right before you leave for the post office. I know its rare but lets say you get raided or something happens in the middle of the night/early morning,etc.. and your pack is sitting on the kitchen table. Imo its best to just pack it right before you leave or at the very least get it all packed up and write the addy before you leave. Even have the dc on it and the copy somewhere hidden and just abbreviate who its going to on the dc slip as well so the customer is safe. Just a little tip. The little things can add up.
