Use an X-10 type system. There is a newer system (I forget the name) that should be a little better.
People ask for this type of crap, you do a lot of work determining costs, then they say it's to much. As a practical matter, I don't think the ones that get installed get used after the first year.
People ask for this type of crap, you do a lot of work determining costs, then they say it's to much. As a practical matter, I don't think the ones that get installed get used after the first year.