Ridiculous amounts of practice exams....

Okay so I'm planning on doing a wild amount of practice exams in the September & October period and it's made me a bit curious.

How many practice exams are you all going to do? Or, if you've finished VCE, how many did you do? What's the most you've heard someone do? What do you think is too little or too many and how effective do you think they are? I just want this to be a thread about vce practice exam quantities.