I always used an exercise book for religion and maths. I also had a 2-ring binder though for maths, particularly for past papers.
I had a lever arch file for Bio, Ancient History and PDHPE. I always had heaps of handouts and notes for these and it just made everything easier.
For english I had display folders, one for each different module or text. These were colour coded via the module, and all of my work went in here though. This became very messy and a lever arch file probably would have been better.
Do a search on the topic though, because I know that there's been heaps of threads on this and different replies could give you different ideas, ya'know.