Have you thought of a simple, industrial type power strip, along with right-sized cables?
I’m thinking of the types meant for under-workbench or under-desk application, 3’ to 4’ long. They can be very useful in cleaning that up.
https://amzn.to/2xNYkEe
Also, instead of zip ties, use velcro straps. You’ll go less crazy. Something like this is big enough to wrap around cables and your furniture:
https://amzn.to/2X9pKz8
And don't forget, you can order very short power cables, like 6" or so.