Thank goodness my contractor warned me about wiring through the spray-in insulation, because I hadn't thought about it. Since he brought it to my attention we wired every room for just about everything. Funny, now that wireless networking is common, we haven't had need for much of it.
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"There is not a man of us who does not at times need a helping hand to be stretched out to him, and then shame upon him who will not stretch out the helping hand to his brother." -Theodore Roosevelt