i would guess i have at least 10 electrical devices plugged in to wall sockets at all times. maybe 20, as i have a big house. 9 phones on chargers, and 5 clocks for openers. 6 battery chargers, 4 computers, 4 printers, copier, router network, fax, 2 scanners, tv, dvd, cable box, 2x computer speakers. wife leaves both washers, driers, and the dw running when leaving. 5 fridges.

we have a"fireprroof" box in the basement against an outside wall for the semi precious documents, and a saftey box for the really important stuff.

i'm too old to pull all those plugs. fire ins on a house costs less than a couple tenths of a percent of the value of the house. that indicates an insurance company is betting 1 to 10000 or better that your house will not burn down in a year.