Direct mail continues to be one of the most powerful ways to reach potential customers. Although social media has revolutionized marketing over the last decade or so, direct mail continues to be extremely relevant. In fact, ignoring direct mail could turn out to be a costly mistake. To make sure that your direct mail does not get thrown out, it is important to use creative direct mail ideas to send your customers something that is personalized, targeted, and relevant to them. Here are 5 great ideas to help you do just that.