I use my own homemade cable lifters. I start with ceramic isolators that I bought at Tractor Supply supported by small bungee cord stretched over two wooden dowels. The base is a flat square of wood that supports the dowels. Very effective and after staining they don't look bad. My cables are about 5" off the floor. I made 8 risers for the speaker cables and 16 risers for my interconnects from the preamp to the amps. Power cords rest on the previous wooden blocks, which are lower to keep them from touching the speaker cables or interconnects where they cross.
I experimented some years back with wooden bowls that we had. I heard a difference so I cut of some lumber into wooden blocks. From there I came up with my design using the ceramic isolators. Not as techy looking as those AQ cable risers but much less expensive. My design idea was to use the bungie for mechanical isolation and the ceramic and wood for static/electrical isolation.
I originally had carpet. When I installed the hardwood floor I kept the cable risers in place. I have never repeated the listening tests with and without risers on my hardwood floor. You know, if it isn't broken, don't fix it.