In this episode of Wow, I Never Knew That, it's been sweetening America for almost 40 years. Now, find out the truth behind how SWEET N LOW actually got its name. And why do we yell SHOTGUN when getting into a car with friends? And why the BEST MAN was really the best man back in the day to carry out a dastardly deed. Then, is it really bad luck to open an umbrella in the house? And, why do women's shirts button on the left and men's button on the right? And, learn the salty truth on how the POTATO CHIP was invented out of ANGER.