Having been recently convinced of the benefits of lifting the cables off the floor, what are your prefernces? Foam, rubber, glass, ceramic, wood, stone? I am currently using cut up pieces of long foam pipe insulation from the hardware store.
I use the porcelin black/brown round lifters you can see on Audiogon for sale some time. I like them a lot. I cannot claim to have heard a substantial audio effect, but I also have not done serious comparative testing.
Great, now we're all outbidding eachother for insulators on ebay. I can just see the smiles on the listers faces. "Wow, I never thought a glass insulator would bring $200 each." Nothing like bidding agains another Audiophile, cost is no object!