As one of the most hotly contested election campaigns in years comes to a close tomorrow, the media is filled with campaign ads. Whether in the morning newspaper, through social media websites, or during commercial breaks on television, we hear constantly about various candidates and ballot referenda. The mailbox is no exception -- direct mail continues to be a widely used political advertising strategy. Recent reports indicate that nearly 2 billion pieces of political mail have been sent this election cycle, and the Postal Service projects it will earn nearly $400 million in revenue from this volume. If you live in a swing state, such as Colorado, Ohio, or Virginia, your mailbox might have been full of political campaign mail all year long. In these battleground states, no single candidate or party has overwhelming support in securing that state's Electoral College votes. Political campaign mail is a targeted and cost-effective way for the candidates to get their message to their intended audience. If you live in an area with hotly contested state or local elections, you've probably received a great deal of mail from their respective campaigns as well. The boost in political mail volumes is a testament to the power of direct mail. More dollars may be spent on television advertising, but the ability of mail to pinpoint a message to voters at a reasonable price is especially attractive to candidates and the national parties. However, using this method too much can backfire. Voters report that the barrage of mail prompts them to tune out the message altogether. They throw away or recycle the mail without even opening the piece. Did you find the mailings effective? Did they help to inform your views of a candidate or a voter proposition? Or did the increased amount of political mail cause you to tune out the message? What advantages and disadvantages do you see over newspaper, television, or Internet advertising? Let us know what you think.