If I told you, I'd have to kill you... Haha, sorry - overused much?
Basically, I've given myself a rather ambitious deadline to finish ALL of my notes for EVERY SINGLE ONE of my subjects by the end of January by typing them up into flashcards, the likes of Anki or Quizlet.
My logic is that by doing this I'll give myself at least three solid months of revision where I'll be able to repeatedly consolidate my notes, as it only takes me about an hour to go through a collection of flashcards on one chapter. I hope that through the repetition, the information will somehow stick.
Exam skills is currently not an issue so learning content will remain my priority. However, perhaps two months before the exams I'll be starting past paper questions and pestering my teachers to mark them!
I've also made little summary sheets where I have the headings from the specification and the key questions at the beginning of the chapters in, for example, my History textbooks so that I'll be tailoring my revision directly to what is required in the specification.
When I'm not motivated to revise properly, I'll be doing extra reading around my subjects. For example with Geography I could read up on the news about the current flood disasters for extra case study knowledge? Or maybe just procrastinate on TSR.