A few solar panels to trickle charge some deep cycle batteries, with a cutover to wall power when the charge drops too low, should be enough to power most of the electronics in your house.
Oil lamps can work for lighting, but they're messy and sooty and it's still low quality indoor air; don't recommend that. You're better off just using windows and natural daylight patterns. Good architecture helps here.
Heating and cooling can really only be improved with better architectural design to take advantage of natural outdoor temperature cycles and the patterns of wind/airflow. Also, of course, via clothing choices; wool (in all forms) is one of my preferred materials. ECWCS Gen 3 stuff works well too. Polypro is a cool material.
Cooking can be done on rocket stoves on a balcony or patio. Cheap to operate, and actually have pretty precise temperature control. Pretty easy to make. Design was invented in Oregon.
If you're really trying to stretch things, the two-canteen system for bathing works fine; heat the water on a rocket stove. Use soap in one with a towel/washcloth, use the other for rinsing.
I think that covers most everything. I spent some time intentionally living without power this year, just trying to figure out how comfortably it could be done. Everything but bathing was a pretty seamless transition.