I take a backpack and a lunch kit.
Front pocket: Steth, badge, watch (all my other nursing stuff I keep in a bag in my locker).
Middle pocket: Gum, mints, body spray, lotion, keys, electronic cigarettes, cell phone cord, extra cell phone battery.
Back Big Pocket: tampons, hair clips, Tylenol, Pepcid, cough drops, brush, a little pouch with travel toothbrush, toothpaste, hair spray, mouthwash, a jacket, and my tens unit.
My lunch is usually some soup, a sandwich, and lots of munchie stuff like crackers, fruit, cheese, peanuts, chips etc. In addition, I usually have a monster, or 5 hour energy just in case I need it at 3am.