I like backpacks because if you're carrying a lot it won't hurt your back as much. Tote bags are cuter, but after a day they can really take a toll on you shoulders and back. If you do get one of these, find one with comfortable shoulder straps.
school backpacks will be coming out soon in the next month or so, try looking at some backpacks they have lots of small and large storage places.
we don't use backpacks in high school just the atlethic people use the duffle bags thats it everyone jjust carries the sutff