The solution is to have DC powered lighting circuits so you don't have terrible $0.50 AC/DC power supplies in every bulb. It'd be nice to have DC circuits for electronics, too, but that's probably a lost cause.
I’m hoping that USB Type C connectors become ubiquitous and people start installing USB C outlets in addition to AC in many wall sockets. Many small appliances can switch to DC and get rid of their transformers. AC will still be needed for e.g. vacuum cleaners, washing machines, refrigerators, loudspeakers, blenders, toasters, hair dryers, etc.