Yes, I agree that brainwaves music and audios are definitely more natural than caffeine, and it's cheaper as well. Nice article.
Wow, I have never tried something like this before, so thanks for sharing. :D
Well, it's just a way to have a little bit of fun in the middle of all these tall pile of assignments! :) Exams are coming near too, so I don't have much spare time lately. :(
I think if you aim for $100 a day, you should aim something like writing for newspaper or other professional medias. They pay much higher.
Agree, sometimes even a small courage could change lots of things.