Right now? My school bag. School at the moment is one of the most important things for me, so I try not to mix the two. If I do, I know I will get distracted as I did in high school. I already have enough to think about, so I try to keep school and magic separated until I get comfortable with the work load, my diabetes, and my new surroundings in College.
That doesn't mean I don't perform magic, I still do, but it comes second to school.
Mitchell