Start in the basement, where the fuse box usually lives. A 60-amp service there feeds the whole house, and it strains when the dryer, the microwave and a window unit all run together. Moving to a breaker panel at 200 amps ends the fuse hunting and adds capacity for the next decade.
Then the kitchen and bath. Ungrounded two-prong outlets from 1954 need either a ground or GFCI protection, and we do both. A range, dryer or AC outlet gets its own properly sized circuit instead of sharing one.
Then the attic. Knob-and-tube remnants often survive up there, and insulation piled on top makes them risky. We trace and retire what we find. Since Ida's remnants flooded parts of Delaware County in September 2021, we also test any panel that took water.