Decided not to do that Staples job anymore- aside from the fact that retail is completely irritating, I just simply could not do it anymore with my courses that I have going on right now. I will be going in on Friday for my last day, but not after that. I gave the manager a polite call earlier to let her know- she's sad to see me go, but still understands, since Staples hires a lot of college students, and so they are used to this sort of thing.
And now I'll actually have the time to look for something! Looking for work and doing interviews along with that job would be impossible as well, as I had no weekdays free.