It's not for everybody (what ever is, rite?) and since you "hardly have any pairs of cables that are similar enough to be interchangeable" then congrats, you're winning at life and don't need anything like this.
The sounds hard
Doesn't feel hard to me. I have a bag for USB A, a bag for USB C, and a bag for USB A<->C.
My USB-C charging cables are all 3' or longer, so they're visually distinct from the crappy little cables that come for free inside the package for various budget-priced gizmos.
My Thunderbolt/USB4 cables are labeled as such, and I am very confused that you are talking about Thunderbolt/USB4 cables so stiff that they cannot bend to fit into a container or bag.... I mean, mine are stiff but not that stiff. Plus these are expensive cables. Not sure I have any spares. Those are bought for purpose.
My USB-C charging cables are all 3' or longer, so they're visually distinct from the crappy little cables that come for free inside the package for various budget-priced gizmos.
My Thunderbolt/USB4 cables are labeled as such, and I am very confused that you are talking about Thunderbolt/USB4 cables so stiff that they cannot bend to fit into a container or bag.... I mean, mine are stiff but not that stiff. Plus these are expensive cables. Not sure I have any spares. Those are bought for purpose.