TIP: There's a walkthrough guide in the form of an image at the root folder called 'Walkthrough'. With it, I was able to 100% the game. Excellent work, my friend.
One thing, though. Get the $5 from the guy besides the coffee shop, then go in and get one, then have him get angry at you, then take it to the bitchy girl. Otherwise, you'll have to spend an extra $5 and have to search for the money for some key thing down the line. You can 100% by not doing that, I just did the math and found that if I did this, I would have saved myself time at the end.