If you’re a travel addict, you’ll know all about the post-vacation bulge. For me, the problem is undoubtedly too many tacos coupled with an aversion to exercise. However, I was shocked to discover recently that you actually don’t have to overindulge. That it is possible to stay fit while traveling. All you need is a bit of organization and a sprinkling of willpower. Obviously, traveling is also about having fun. So, yes, dance through the night. Eat that calorific dessert. Loosen those shackles.  But also, use these 12 helpful tips to stay fit while traveling. You’ll return home healthier than ever. 1. Reset Your Thinking For a long time, I…