Need Help! Please Advise . . .

Greetings everyone! I need advice today . . .I have been using the plastic binder/book holders to use as my students individual browsing boxes for years. However, we will have several more students in our classes this year and I am in the position of having to order more to have enough for everyone. With this in mind, I wanted to know what do you use, plastic tub, bag, basket, etc. and why you like it . . .so that I can make a decision about whether to order more of what I have or whether there is a great idea out there that I don't know about and haven't tried. I need to decide in the next couple of days. Please give me your ideas/input . . .

Thanks a bunch!