I don't have much floor space for my stuff and have a really hard time getting organized. Any suggestions would be helpful.
Assuming your papers are 8.5" by 11"...
These generic plastic letter trays can be stacked up to great heights. Doesn't take much floor or desk space and will nicely separate your different papers and notebooks.
You can add labels to each tray by wrapping a small piece of paper around the frame on one side and stapling the ends together. Or you can tape a label onto the tray above and have it hang over the front.
These trays can also be found in larger sizes.