Okay I'll just watch his Ochem videos without the quizzes. Thanks!
I did not see a reason to spend any money on any videos...
For both GC and OC chad's were sufficient for basics.
I just bought 1 book-DAT destroyer-with my money. While going through destroyer if I needed more detailed clarification, I went to Khan's academy(free) and watched those specific topic. (and did the free quiz to make sure I understood).
(I didn't have money/intent to buy BC, so I can't speak for that route. I heard it is decent.)
So, GC and OC this is more than enough.
for the BIO. oh well. BIO is BIO. you just have to know all. I read free dynamite bio notes (Free) multiple times, made my own notes out of it (comparison between organs for endocrine, hormone names, functions etc.) and did not need anything else to spend my money on it.
For RC, I've been reading science journal past 4-5 years so I didn't do anything. I knew in limited time, I can't improve any further much. I just did 2009 DAT to see the question structures...
For QR I knew I was already weak. but didn't have time to improve greatly, I had limited time and I knew I can improve more in science than QR at the point, so just did destroyer QR and watched youtube list from Dr. Romano's study group. If you are already decent and QR, no worries. I was really bad at math to begin with.
For PAT, I have BFA, I've been trained in fine art past 12 years, so I only did free sample part of BC, free sample of crack DAT, free 2009 DAT, free sample of anything you can find on the internet to get familiar with question types. I got unlucky at actual DAT and the hole punch was extremely hard. I've never seen that hard on anywhere... haha. 2009 DAT PAT is joke. If you are weak at PAT, maybe you can pay some money to buy crack DAT or Something Vault...for those.
At least for science wise, you don't need to spend much money....