Utility lights should always have some type of wire guard over them. Heat from an uncovered light bulb can easily ignite ordinary combustibles. Don't misuse fuses. Never install a fuse rated higher than specified for the circuit. Investigate any appliance or electrical equipment that smells strange.
Unusual odors can be the first sign of fire.
Don't overload wall outlets. Two outlets should have no more than two plugs. Class B - Extinguish flammable liquids, greases or gases by removing the oxygen, preventing the vapors from reaching the ignition source or inhibiting the chemical chain reaction. Class C - Extinguish gas fires by starving the same as in Class B fires. Even though halon is widely used, EPA legislation is phasing it out of use in favor of agents less harmful to the environment.