[JKCalhoun]

12V DC is the way to go. There is a marine/RV ecosystem that uses 12V DC already in the market.

I'm picturing my future home though, festooned with "cigarette lighter" outlets throughout the house.

[marcosdumay]

For lighting? Maybe.

But you won't replace all the 15A/30A lines on your home with 12V lines. it's not viable.

[JKCalhoun]

You're right.

But I have a van that I converted to an RV and it has a 12V fridge, 12V fans, 12V pump (for the water), 12V chargers for my phones and of course 12V lighting.

I think a good deal of electronics in a home could be run on 12V DC.