I'm sharing my so-far-100%-effective tips for avoiding running into your exes while out and about. There are only three guys that I would consider "serious exes" in my past but, knock on wood, I have been successful in avoiding them for the entirety of my married life. And I'm not mad at that. There are only two things you have to do (one is definitely easier than the other) but give them a try and let me know if they work for you too.