Tiny bridges everywhere, but why?


As I am getting closer to my first "complete" system, I am starting to research and get opinions on smaller tweaks. The cherries on top, so to speak. The term "smaller" covers the size, cost and possible impact to SQ. 

I do not know what they are called but I am seeing all sorts of devices holding up cables. Don't know why but they remind me of Navy Seals running out of the ocean with a telephone pole over their shoulder...

Thanks to this forum I have learned that everything in some way impacts SQ, so whatever these thingamabobs are called, do they impact SQ or are they a form of cable management? Both? Do materials matter? Am I going to have to splurge on rosewood versions treated with stain containing ash from one of Jerry Garcia's guitars, or could I use old shoes for now to accomplish whatever mission these fulfill?

I could have Googled this topic, but I want to hear from you - Your experience, choices, etc. 
128x128izjjzi
+1 what Millercarbon said.

I use the old electrical insulators as elevators. You have some good components… once you did the big stuff… the perfect time to do the smaller stuff. Ultimately it is what can add up to turning a good system into great system. 

Isolation works everywhere. While this is not tiny cost…. If you don’t have a direct line (or better yet, two, consider that. You can get a sizable boost in performance there.
Wait!  If this is your “first complete system” then wait.  Wait until you have lived with your system as is and first develop a solid understanding and appreciation of its sound.  Fine tune speaker placement, make sure all plugs and jacks are very clean, do as Ohnwy61 suggests and live with that sound for some time.  THEN experiment with “smaller tweaks”.  You’ll then be able to appreciate the possible benefits far better.  
The only Jacob's Ladder I know is the Tim Robbins movie. Had to go look it up and, holy cow! That is the LAST thing I would put in my listening room! I mean it looks cool and all, and there are people I would for damn sure love to scare the Dicken's out of with it, but Lord man can you imagine the EMI!?!?!! Crikey!!!
Since you say you're tapped out for costly additions at the moment and before you install your room treatments you should learn and run a program called REW. It's free but a calibrated microphone will run about $100. Once you get an idea of how your room interacts with your system you will have a better understanding of where the room treatments will be most effective. If you want real improvements that's where I would put my energy for now,   after that if you enjoy playing with these tweaks most of them don't cause any real harm but some can get expensive with no benefit. 
$100 will buy 3 sets of Nobsound springs. Each set will support a component of up to around 100lbs. Since most are way less than that you actually get springs enough to do 5 or 6 components. It takes a little experimentation to get the spring loading just right, and making extra pods is a bit of entry level DIY, but totally worth it as you then have the tweak of the century.