I have just discovered that I will be teaching four subjects across three departments in ten different classrooms in three different buildings next year. Although I am getting better, I'm not the world's most organised person. I am trying to work out what equipment I will need to make this work. So far I've come up with a plastic crate on wheels with a retractable handle (like rolling suitcases), a toolbox type tray to carry pens, scissors and glue, and one plastic box to keep each group's books in. Anyone got any tips on where I might find these? And any ideas on other stuff I will need?