Fiber is easy if you buy fiber patch cables, and just coil up the excess. Copper just has limitations, I wouldn't be surprised if there's no real progress in copper networking in the next few years.
I did research, and the problem I found was that there is very little availability for fiber cables of alternative colors. Most of the cables I found that were the right type and thickness I wanted, I could only find in bright yellow that would stick out.
There are a few products like invisilight that are incredibly thin and almost clear which would be ideal. However, they're only sold in bulk to businesses so I could only find some on ebay. It felt too adventurous for me to pull the trigger.
Currently 5Ghz wifi is sufficient, but its bad enough that I refrain from doing anything that consumes a lot of bandwidth, like torrenting.