I finally have a somewhat clean-looking desk setup! Managed to did some only-semi-lousy cable management, and removed everything that isn't in use.
The monitor remains the same Dell U2717D as it has been before, the PC is the same Dell Precision T3610 as before, apart from the fact you can see it now (and a HDD upgrade which you can't see anyway), but the rest of the peripherals are new, and frankly, they're all more-or-less trash.
Okay, the mouse is decent (Logitech G302 Daedalus Prime), but it's a gaming mouse and it shines blue light. I actually don't mind the light as much as I thought I would, but I still can't really make out the difference between this one and my old one, which was some cheap generic crap. Therefore I listed it in the classifieds, along with the keyboard.
Which brings me over to the keyboard. It's small, it's compact, it's light, and that's where the good things about it end. I've never tried Cherry MX Blues, but this has a clone of them (Outemu Blues), and they feel like they're way too easy to press. I might've just got used to the IBM Model M, but these switches just feel cheap. And so do the keycaps, which are really ugly, and so does the build quality of the board itself, and so does the overall experience. Luckily, both this and the mouse were dirt-cheap flea market finds, so I can only gain money by selling them.
And the speakers are probably the worst, but I can't and won't sell those. They're some cheap, generic, 5W (IIRC) crap that doesn't sound good. The only good thing about them is that they're USB-powered, so I don't need a bigger power strip just yet. Also, a good thing is that I can always use my Koss headphones for whenever I want better sound quality or for when I need more privacy. These speakers are basically here just for when I don't feel like having headphones on.
I will be going back to the IBM Model M or a newer, rubber-dome IBM keyboard I have lying around as soon as I sell this keyboard, and I will go back to an inferior, generic mouse just because I don't need better, and because I could have a little bit of profit by selling this one.
Oh, and if I want to use my laptop I can put it where the keyboard is, and use the monitor as a secondary, upper screen (a bit of an odd setup, but I kinda got used to such a setup last semester). Also, shall I need, I can move the PC a bit further to the left, put the laptop there, and use them both at the same time, but I don't see a need for that.
TL;DR: I did an attempt at cable management. Doesn't look spectacular by any means, but it's much nicer than any setup I had before.