A frequently asked question among teenagers is: backpack vs. wheeled school bag?

If you pass by schools in the mornings, you'll see a very familiar sight. Some students are slung over their backpacks, their bodies bulging, while others are dragging wheeled suitcases behind them. You can be sure those are packed with books and school supplies. And nowadays, many schools don't allow students to leave their notebooks at school; they have to carry them home every day. Plus, these kids often bring iPads or laptops to school, adding even more weight.