When I was setting up our conference rooms, I needed to run cables to the table in the center of the room for the phone and laptops. We're in an old building and don't have the luxury of installing outlets in the floor at the center of the room. I had originally bought those cord runners that look like a small speed bump. But it kept getting kicked around, and it never really laid flat after coming rolled up.
I was talking to a guy who was extending our Ethernet network to a new office addition, and he mentioned that there were flat cables. Sure enough, I bought flat HDMI cables for connecting laptops to the conference room displays, flat USB extension cablesconferencing microphone/speaker combo, and even flat power extension cords for laptop chargers (remember, keep your Li-Ion devices plugged in as much as possible!).
To prevent a tripping hazard, we got some small area rugs and threw them over the cabling. I used gaffers tape on some cables to ensure they don't get moved or twisted. I did this going on a year ago, and it's worked out really well.