We bought our new house directly from the builder, so I was able to get them to set things up properly: Cat6 and coax drops everywhere, all coming into a nice network closet. Of course, the HE lives in there, since the closet is (A) central in the house, and (B) made of plastic.
Since I got a 3D printer for christmas, I had to design and print this to allow the HE to be properly mounted in the closet.
If you want to modify it, the Tinkercad model can be found here:
which will allow you to work on the model fairly easily. The ungroup feature works on copies, so you can reduce it to it's individual components and modify it to your heart's content.
To quote the Sirius Cybernetics Corporation tag line: "Share and Enjoy!"