if you have a good memory then you will surely get TOP marks
so i got this really famous book for you people
just download and read and get >90% marks
http://rapidshare.com/files/239683157/How_To_Develop_A_Perfect_Memory__Dominic_O_Brien__Quantum_Memory_Power.pdf
i agree that reading it will take time but will CERTAINLY help in the long
i just wanna thank O'Brien for this awesome book