Cable elevators

audiofool1, unless someone's playing basketball on your wooden floors, I don't see any problem. That, and anything you prop them up on will simply transmit the vibrations up to the cables, opening another can of worms. 

All the best,
Nonoise

Propping the cables up on "Isolators" would minimize the area of the cables exposed to seismic type vibration by quite a bit. Another technique that might be better is suspending the cables and cords from the ceiling with high test fishing line on eye hooks with a rubber band on one end of the fishing line.

You don't need to spend a bunch of money on elevators if you are just a little bit handy.  I made mine out of 2 1/2" poplar boards (4 pieces glued together and sanded) and then ran them through a table saw in the center to cut the slot for the ribbon cable.  See last picture on my system page.  I made a bunch of them for just the cost of the wood.

Wow. Great comments and ideas. I will experiment and see what seems to work best. Thanks to everyone so much for your input.

OP,  You may also look into elevators from Red Dragon Audio, I am using these to keep my flat cables above carpet to great effect. And they are quite inexpensive. 

https://www.reddragonaudio.com/collections/frontpage/products/esd-xl-cable-elevators