9. Space lighting (lamps with cheap bulbs)
Table and floor lamps plugged in constantly are inviting trip hazards and can overheat if a bad bulb is used or the shade traps heat. Even LED bulbs can fail silently if left powered through long surges or poor wiring.
- Risk: fire from trapped heat or poor sockets.
- Do instead: switch lamps off at the wall switch or unplug when unused for long periods; use LED bulbs with proper wattage ratings.
10. Microwave ovens (clock and standby)
Microwaves keep a clock and some electronics powered even when not active. While the draw is small, faulty wiring or overheated components can create problems if the microwave is old or in a crowded cabinet.
- Risk: failed components, small standby energy use.
- Do instead: if you’re replacing appliances, choose models with low standby draws. If you store or move a microwave, unplug it first.
11. Aquarium equipment (heaters, pumps) — when maintenance is being done
Aquarium pumps and heaters should be left running for fish, but they must be managed correctly during cleaning. Detaching equipment while water is low or operating heaters outside the tank can cause burns, electrical shorts, or heater failures.
- Risk: equipment damage, risk to aquatic life, electrical hazard.
- Do instead: keep equipment plugged into a GFCI outlet; if you need to unplug for maintenance, only do so when water levels are safe and the unit is dry.
12. Old or cheap power strips and extension cords
Power strips are convenient — and dangerous if overloaded or left under rugs. Cheap strips without surge protection or thermal fuses can overheat and cause fires, especially when powering heaters, space heaters, or multiple high-draw devices.
- Risk: overheating, fire, tripping circuits.
- Do instead: upgrade to quality surge protectors with indicator lights and thermal cutouts; avoid running cords under rugs and don’t daisy-chain strips.
13. Smart home hubs and old routers
Routers and hubs are expected to run 24/7, but older units produce heat and may be less efficient or secure if left in dusty or confined spaces. They’re not the same as “unplug everything” cases, but they should be placed well and replaced when old.
- Risk: reduced lifespan, dust build-up, small heat/fire risk if blocked.
- Do instead: keep routers ventilated, dust-free, and off the floor; replace older units with energy-efficient models when possible.
