On occasion we have all received the same piece of mail multiple times. Maybe we signed up to a service twice or made two frequent purchases from a website or donated to a charity over the phone and also by post. Regardless of the reason, it feels like a waste and as a consumer you know somewhere down the line you are paying for that waste. Failure to effectively remove duplicates from a mailing file can also have greater consequences. One high profile charity donor received more than 10 duplicate appeal packs and immediately and publicly withdrew their support for the charity. His viewpoint ‘you obviously don’t need my support if you can afford to waste money sending me all [...]