We've been unspooling the stash of wood off-cuts, bits of copper pipe, and misc. broken or trash-picked parts from my late grandfather's workshop for the last few years. He always seemed to have materials at-hand to fix anything and, as a kid, I was in awe of that. Now I understand why.
I hope I can leave less stuff for my daughter to poke thru, but at the same time I want to be like my grandfather, seemingly being able to fix anything immediately.
Grouping them is key to deduplicating.
It's easy to look at a single legacy USB A-to-B "printer" cable in isolation and think "I might need this someday!" Because you really might need it someday. However, if you group them you might see that you have ten of them. And then you can get rid of... maybe 8 of them.
I also (mostly) put individual cables into baggies. You can get clear 2mil generic ziploc style baggies for super cheap on Amazon or elsewhere. $15 for 200 or something. Prvents tangles and way less effort than wrapping or tying them.
I'll second "grouping" with "capability sorting". Get a cable tester and sort your cables by Charge/USB speeds. Even with my default "grouping" of things like "USB-C -> C", "USB-A -> C", etc I still was buying new cables for projects/uses since I wanted to make sure I got exactly the speed/power requirements right. Now all my cables are sorted by capability and that led to more purging and less purchasing since I can go to my cable bins and grab exactly what I need.
I've got "USB", "AV" and "Networking & PC Accessories", which obviously has enormous overlap.
Mine is similar but I split audio and video since I have a lot of audio-specific stuff. "Video" only has the various monitor cable standards going back 20-odd years.
IM/FWIW: I personally have found 4mil ziploc-style bags to be pretty close to indestructible. They're like thick evidence locker bags
Getting rid of almost 10 different proprietary charging cables for pre-smart phones and some old laptops felt great though :P
The box stays, but cables come and go. I cleared out some PS/2 related cables recently, after not owning any hardware with that port for like a decade now.
There are some 3d printer models for building grids of individual cable organizers (https://makerworld.com/en/models/946444-gridfinity-cable-org...) but I have too many cables and my collection is too dynamic to well-utilize something as static as that.
I do want to mention though, a huge amount of cables can be replaced by usb-c cables + an adapter. You don't need a bus to HDMI cable: just get an adapter that has usb-c female, that your cable plugs into, that changes it to HDMI. Ditto for displayport, USB micro, USB b, USB a.
And for power VFLEX has a quite reasonably priced adapter to DC barrel jacks. I still have I dunno 70 power supplies, for laptops, gadgets and whatever. But at this point almost all my devices actually run on high efficiency gan usb-c power supplies. These once again follow the pattern: a usb-c female, then a pigtail (yay, better than fixed, like the HDMI), then the barrel jack.