Rank the tweaks, geeks!


How would you rank the general importance of the following gear (not room or electrical) tweaks. You can use your own setup and experience as your basis. If you tried something and it didn't matter, put it in a separate paragraph at the bottom with "didn't matter" next to it. If it doesn't apply to your setup, just don't include it on your list.

speaker wires
speaker isolation
interconnects
cable risers
component isolation
tube dampers
power cords for amps
power cords for preamps
power cords for other compnents
better capacitors (where?)
better fuses (where?)

Did I leave out an important tweak? Please add in as you see fit.

Think it's all snake oil and voodoo? Go watch some TV or take a walk and let folks on the thread have their fun. Because this is a hobby.

If you think that "everything matters" but are willing to go beyond that and suggest what would be the best first step toward doing something, please list the best first things to do. A "to do agenda" rather than a "priority list."
128x128hilde45
The best tweak is to learn what to listen FOR. Last night my soul touched the soul of Miles Davis. It was a glorious experience.

On bitter coffee: Get into home-roasting. You will not believe what you’ve been missing, and just how good coffee can be.

Here’s the site: www.sweetmarias.com

PM me if you want info on buying home-roasting equipment.

Frank
I ripped apart the tranquility Base to see what was inside it. 🥸😱😂🤹🎪

Mind games I tell you. 
i have hardly any experience with most of the tweaks mentioned, but can say that putting herbies mats on my technics tightened up the bottom on a lot of my bass-heavy records. the trade off was having to spin the platter back from the side to cue - with a felt mat i could just put my hand in the center of the record and adjust it that way. i'm not really much of a dj anymore so it was a worthwhile tweak to me for everyday listening
kennyc-
Too much effort to rank, and for me it’s better only as a checklist as what one needs to address (or not) in their own system. 
Waste of time to rank. To know what needs attention, different story. 

Everything needs attention. Every tiny little thing. For example, take just one thing: the speaker. Tweaks that will improve a speaker. 
Vibration control: Put on springs, Pods, Bars, or Podiums. TA-102 fO.q tape: use on the basket, as a mounting gasket, between mounting screws and driver, on the crossover board, on the caps. Put crossover on springs or Pods. Move crossover outboard. 

Field control: contact cleaners and enhancers, NPS1260 (TC if you have it, and count yourself lucky if you do!), move crossover outboard. 

Acoustic control: Synergistic HFT Speaker Kit.  

Again, this is just the tweaks we can do on the speaker itself.   

This same approach applies across the board. A lot of these same things work just as well inside an amp or phono stage or preamp or DAC.   

Once you get the hang of this the opportunities are endless. My system is about as tweaked as you will find. Yet I have way more ideas for improvement than time to do them in.

Anyone who chooses what to do first has implicitly ranked, unless they’re acting at random.
Anyone who makes a checklist has to choose what to do on it, first.
Let's not quibble. Rankings, taken to an extreme, are quixotic, a waste of time.
But we all agree to do the bigger stuff, first. Nuff said.