Picture this...
Tom arrives home from work, parks his car in his driveway, and walks to his mailbox. It's cold out, so he hustles. He reaches inside, pulls out the day's deliveries, and then hurries inside the house. After greeting his family, he begins to sort through the mail. Tom's a busy guy and doesn't like clutter, so he doesn't need much of a reason to throw mail in the trash. In fact, without realizing it, Tom has developed an effective system for doing just that:
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