Postal Games

We keep getting mail sent to us that belongs to the previous owner of our house. We have written "Not at this address: Please Forward" on it and it keeps coming back. In some cases, it comes again with an included "Or Current Resident" --and if we open it (being the current residents) we find that it is business for the previous occupant that should not have anything to do with us. So we cross out the "Current Resident" part and try to send it back. Then, in a day or two it returns again. So, I have decided that I will keep putting it back in the mailbox that I walk past every day. I will do this for as long as I continue to live if necessary. I want to see if the carrier, if not the U.S. Postal Service, will continue this game "forever"...