Power Conditioners

Such as?

BDR Cones, $20 ea. https://www.musicdirect.com/vibration-control/bdr-cones

Synergistic Research PHT, ECT, HFT, Orange Fuse. These are all in the $200-400 range. All very effective. https://highend-electronics.com/products/synergistic-research-pht-phono-transducer?_pos=237&_sid...

Ceramic insulators (Cable Elevators) generally around $20 ea on eBay where they are sold as collectibles, or you can go with the brand name Cable Elevators. They all look different but work just the same.
https://www.ebay.com/itm/Vintage-Ohio-Brass-Co-Porcelain-Ceramic-Insulator-Electric-Pole-Telegraph-E...
I would go with these, you can find cheaper on eBay but not a matched set like this. https://www.musicdirect.com/brands/cable-elevators/?manufacturer=Cable%2520Elevators&sort=popula...

Owens Corning acoustic panels. OC703 is industry standard found inside a lot of expensive acoustic panels. Look around for a hardware store that will sell you individual panels. Cuts easily, and once covered in fabric looks and sounds just like the professional stuff. https://www.tmsoundproofing.com/Owens-Corning-703-1-inch-Fiberglass-Panel.html

Then when you’ve tried this stuff and realize holy crap this guy knows what he’s talking about PM and I will hook you up with the really good stuff.
https://systems.audiogon.com/systems/8367

Look close, notice two Green Dream and one Black Widow PHT on my tone arm, plus one ECT on the tone arm base and motor. They aren’t there for the looks, I can assure you that!

Those two are nothing more than overbuilt power strips. For not much more you could get a Synergistic Blue or Orange outlet that really would make a difference. But there's a lot of other more cost effective improvements and it would make sense to do those first. 

If you need more outlets get a cheap power strip and don't sweat that it looks like a cheap power strip. If you want better outlets go Blue or Orange. Or even better get a used Synergistic Master Coupler, there was a guy on here recently with a whole bunch of them for only $200. He may still have a few left.