First, I will share my way of study.
I use these textbookes.
The first one's writer, Sumiko Nakamura, take TOEIC test every time. So the textbook know tendency well. Especially PART 5 is good. You can remember grammar and catch new words. And this texbook is pocket book size. So it is suitable to study on train.
The second one is real test style. I try this many times and become used to speed and length. And this textbook have CDs so I download it to my iphone.
Please tell me your way to study TOEIC.
P.S. I found 100 ways to improve TOEIC score.
If you are interested in, check it.

