As cliché as it may sound, I have found this maxim to be true: "Failing to plan is planning to fail." Granted, none of us are perfect. We all make mistakes that ultimately serve as valuable learning experiences. What's more, some of us plan and still end up with less-than-desirable outcomes. But far too many of my friends have wound up in difficult situations -- from grappling with poor career choices to navigating tumultuous relationships -- that could have been avoided had they only planned ahead. Here are a couple of reasons why we might fail to plan our decisions carefully: We're impulsive : We act in the moment without carefully considering the consequences beforehand. We're lazy : There's a reason why psychologists have dubbed human beings "cognitive misers." Naturally, we try to expend as few mental resources as possible. We're emotional: Whether we're happy or angry, our emotions often get in the way of reason, leading us...