This was something that i was doing for myself but i realised that it could be useful for students out there, it is a zip file containing a folder structure that i use to organise my notes for each other modules i am taking during the term. Looking at the screenshot would help you understand the uses for this in case my explanation wasnt clear. Please feel free to edit the structure in the zip file to suit your workflow. Mac and PC compatible but nice colourful labels for mac uses only 
Screenshot
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