Ever wondered why airlines are so strict about your suitcase being a pound over, but then you see workers loading giant yellow sandbags onto the plane? Turns out, those 50-pound bags are called ballast bags, and they keep the plane balanced when there aren’t enough passengers. It’s all about safety, but it does sting to pay extra for your 51-pound bag while the airline adds thousands of pounds themselves. Next time you fly, you’ll know what those mystery bags are! #Business #TravelHacks #AirlineSecrets