I recently moved, so not as well as at my old house which had solar and a whole house battery. We had several times where we lost grid power for a few days and it was annoying but basically fine. I had to turn off most electronics but we could keep the fridge and other important things going. The oven was gas so and I had a propane grill so cooking was sorted.

Now I’m in a five plex where everything except the water heater is electric and I don’t have my grill. I do have a small camp stove and a few fuel canisters. Mostly importantly I have a big camping battery and solar setup to run our CPAPs and keep the phones charged, plus a weeks worth of camp foods in our emergency bin. So, we’d be ok enough for a week.

EDIT: Water isn't big of an issue as you might think. In most places, municipal water will continue to work for several days from gravity alone, and often has its own backup power systems or is on a different supply from the city. At the old house we also had a backup 55 gallons in a long term storage drum with treatment tablets and a calendar reminder to swap it out on schedule. I never ended up using the water in an emergency but it's cheap insurance.