I took a somewhat different approach. Once I read through the basic concept and how selection criteria are provided, I just use the commute downtown now and then to write out a 2 page essay 1-2 a week to pass the time.
@annakang1005: I scored a 179 in Dec and I'm now studying 11 hours a day to get a 180 in June. I'm Yale or bust. Ok I'll try and increase to 15 hours a day.
I'll just put it at this, I'm PRAYING for low 160's. My grades from undergrad are better than most, and I've no ambitions of attending Harvard or Yale, which I'd have had to have scored close to perfect to do any way.
... too much on the unscored essay. When I received my score ... sent a copy of the essay as well. I had a ... a photocopy of a penciled essay, and the erasures etc.. obfuscates ... attention is given to the essay by the schools.