Your weight loss program is on a roll, but that business trip or long-awaited vacation has you scheduled for hours on the road (or in the air) and days surrounded by the dangers of eating out. What will you do if you get trapped in an airport terminal with nothing but unhealthy snack options? Can you resist the temptation of those conveniently-placed fast food joints? Will you be able to handle the stress of navigating a crowded highway or theme park without seeking comfort in sugary snacks? And what will you do for a week lounging on those floating buffets travel agents like to call cruise ships?