I typically unplug things like battery chargers, shop vacs, air compressor, etc. TV, Radio, etc; I don't bother with since they are newer and are in good shape. Inside the house, things like the coffee pot and toaster get unplugged after EVERY use, I don't allow candles to be lit in my house, or any bathroom appliance like curling irons to remain plugged in. I grew up with a family of firemen and I was on a volunteer department for several years and being a Master Electrician I have witnessed my fair share of fires resulting from things like coffee pots, curling irons, etc. One of the other big no no's IMO is to leave the house with a major appliance like a washer, dryer, or dishwasher running. I've sprayed water on more then one house because the owner left when the dryer, dishwasher, or washing machine was running and it malfunctioned and caught fire. One thing some folks we know think is funny is that when we cook with a Crock Pot, I plug it into a 12 gauge extension cord and place the crock pot in the middle of the garage on the concrete floor so that if it starts fire, it won't likely burn much.