I would line my walls with aluminum foil.
You can get foil faced drywall…I’ve designed a few ghetto faraday cages that way
Agreed. Plus if I’m doing a new build, I’m going to know how rooms are going to be setup so I can do the speaker wire/HDMI/RCA/Interconnects during the build.
All good points. I always ask customers to spend some of their time to think about what they have now, what needs to be fixed, and what they would want that they don’t have now. Some people need to provide information so that the builder / contractor doesn’t have to interrogate them hoping they ask the right question.