[paggle]

If I built a new house today I’d wire 12 volts DC in addition to 110VAC. Safe for kids and fewer unsightly wall warts.

[m0xte]

Also impractical due to I^2R losses.

[paggle]

Not if you has an in-wall supply in each room.

[m0xte]

I’ll stick with the AC thanks. Having a house full of switchers is going to be hell.

[paggle]

I already have a house full of switchers, with all the wall warts! I've got at least 15 that are always plugged in.

[Gibbon1]

Was recently thinking that single pair power over Ethernet could probably handle 90% of the use case for residential power. 50W is enough for a LED/Fluorescent lighting, power a laptop, lighting, charge your phone.