Cravings/Symptoms tell gender?

What is everyone's thoughts and experience with their cravings and symptoms and the gender of their babies? I've had a million people tell me that I'm having a boy because I'm always craving Mexican foods and salty stuff. Not to mention my cravings come as rapidly as my mood swings lol if I see a picture or a commercial or smell something it's a do or die feeling to get that food.