A run of ethernet cable costs money to install, but once done it uses no power, zero maintenance and gives you 1000Mbs or more full duplex reliably. (I'd discard Ethernet over Power before Wifi, cable is so much nicer).
The cabling runs through the ceiling and dropped down to port height via electrical conduit on the external side of the wall. It was expensive but I would have paid more considering the quality of life improvement.
So I've settled on using rubber cable floor covers. They don't look very good, but they're perfectly practical: cheap, much reduced trip risk, no need to open up the walls or tape/nail anything to them to get everything arranged.
(Not sure how I'd feel about this on a permanent basis, though. Once it's back to just me, my laptop, my iPad, and my phone, the internet connection will be the bottleneck again, and I'll be switching back to nothing but wifi...)