Honestly, I've never had that much stuff to carry with me. I'm going into my second semester, and last semester, we were only required to bring one of our books with us to class, and that was only on occasion (maybe about 5 times the entire semester).
I would bring my folder, pens, pencils, highlighters, my food, and on clinical days, my stethoscope, penlight, scissors and watch as well.
In all honesty, most days, I just used my large purse. If it was a particularly long day (i.e. clinical then class after), I brought my backpack, a regular, run of the mill Jansport.