When my sister and I had to start taking the bus to middle school, things were different. We lived on this big hill, and of course, the bus stop was at the bottom. Mornings weren’t so bad–we’d chat and walk down together, but afternoons were a whole other story. After a long day of school, the last thing we wanted to do was trudge up that hill. It felt like a never-ending climb, and we’d usually complain about how tough it was.