- different folders, preferably different colours so it's easier to organise
- dividers within the folders to separate topics/teachers
- plastic wallets - they make your work look better, which also makes it easier to revise from (also protects from the rain)
- get a drawer/file thing for each subject so you can also keep any books together as well
- date your work, so you can file it in date order and also it helps you to revise more effectively
(having just written it, i realise i sound a bit obbsessive monica-esque, but it does work!!)