All of us have probably experienced at least one vacation that didn't live up to expectations. The planning, the anticipation, along with the money and time invested produced a flop. No matter how we sugar-coated the experience, that vacation was disappointing. Of course, some of the reasons can be purely bad luck: getting sick or being injured can happen. Something goes wrong at home or with family and the vacation must be ended quickly. But, in thinking about vacations my family and I have taken over the years, there are five factors that seem to conspire to lay waste to the best-laid plans. Being reminded of their potential to mess things up may help you avoid a vacation washout. Over or Under Scheduled I am a planner. When my family and I take a vacation, the days are often plotted as carefully as a military campaign. If we are going to spend the money and take the time, by golly, we will not waste a minute, we will enjoy everything and at double speed. Luckily,...