Here's a list for any student that is heading into exam year:
Diary - to note all those to-dos, and give a exam count down.
Calendar - some like this but not always necessary as long as you do the count down in the diary.
Then the usual
Pens - black, blue and coloured. Remember your not allowed to use gel pens in exams.
Fine felt tip pens for mind maps.
Pencils
Highlighters
Eraser
Sharpener
Correction fluid - not always necessary as in some subjects you are not allowed to use it.
Dividers
Plastic envelopes for the binders
Binders - some courses you are told what colour they need to be, otherwise colour code them with your exercise books.
Exercise note books
CLEAR pencil case - only clear ones are allowed in the exams, or they have to go in your bag or on the floor below your desk.
Non digital watches are allowed on desks in exams, so if you are going to use yours for timings it can't be digital.
A rule - folding or long etc
Printer paper and printer ink for your printer if you are doing assignments etc
Post it notes
Index cards and elastic bands to hold them in bundles.
Graph paper - if your doing maths you might find it easier to write stuff on
A4 notebooks for cheat sheets, mind maps - do a revision guide as you go, then your prepared for when you start your revision. One per subject
Then class specific stuff
Proper calculator - recommended by the tutor/course
Protractor - I liked my circular one which made life a lot easier when doing bearings on maps.
In one of my classes we didn't have desks, so I had a clipboard to lean against.
A folder to put in hand outs for each subject, we literally got loads in maths this year.
A back pack or bag to carry it all.
Poundland has a great range of stuff for school, I also love Paperchase and Ebay. I just get a few bits each time I go shopping and I've pretty much got it all now.