Yeah, already been said but check through the resource section of the website, I'm sure there is numerous notes to choose from, also the sticky in the SC thread, the one containing notes and as such is really helpful.
What I would be doing if I was you, is researching the key points you need to know for history and geography, and make some summaries, and just start to revise. Even if someone gave you their notes, having the notes and writing your own are very two different concepts, where as one you think you will know and the other you will start to understand.
Also practice, practice, practice. Remember check the board of studies for online multiple choice and past papers, that way you get an idea for what sort of questions will be in the SC.
And Good luck, I hope you take in the advice people have given you here, and study a little bit and get to know the basics of your humanities subjects before the SC. But remember, SC isn't everything, unless you plan on leaving school and looking to acquire a job.
>History is my favourite subject!