1. Dishwasher and Washing Machine

"Running the dishwasher while doing laundry can deplete your hot water supply, and yes, the clothes or the dishes might not get as clean as they should," Lewis says. The two appliances use a significant amount of energy and when used simultaneously, they can run less efficiently and trip the breaker if they are on the same circuit. Additionally, turning on the dishwasher and washing machine at the same time can reduce the amount of hot water and lower the water pressure in the shower and kitchen sink.

2. Small Kitchen Appliances

It may seem like only large kitchen and laundry appliances would cause issues if run together. However, there are several small kitchen appliances that use a lot of power and their use should be staggered whenever possible. Small countertop appliances such as an electric kettle, a microwave, or a toaster are typically on the same circuit. They all consume large amounts of energy and using them all at the same time can overload the circuit and potentially trip the breaker. To prevent this, avoid plugging them into one outlet, check their wattage to make sure you are not overloading outlets and circuits, and stagger their use.

3. Space Heaters and Other High-Wattage Appliances

A space heater uses a lot of energy and turning on another high-wattage appliance that's on the same circuit can easily overload the circuit. This can result in a tripped breaker, or in more serious cases it can lead to overheated wires and a potential fire. Although a space heater can quickly provide much needed heat, using it correctly is essential. Make sure that it is plugged into an outlet and not a power strip, and do not plug any other appliances into that outlet. Avoid running other high-wattage appliances such as large kitchen and laundry appliances that are on the same circuit as the space heater.

4. High-Wattage Appliances That Run for a Long Time

High-wattage appliances are ones that use a large amount of energy. They include everything from dishwashers and ovens to window air conditioning units and coffee makers. While they all consume a significant amount of power, a window unit typically stays on for several hours if not all day, but a coffee maker is only on for a couple of minutes. It's best to avoid running high-wattage appliances, especially those that stay on for extended periods of time, simultaneously in order to prevent a safety hazard.

5. Hair Dryer and Multiple Other Bathroom Appliances

Hair dryers may be small and portable, but they are known to use a lot of power. Their wattage ranges, which high-end, professional-level hair dryers using up to 2,500 watts. If more than one person is getting ready in the bathroom at the same time, avoid using a hair dryer while multiple other appliances are being used. Even though they may use less watts, when you add an electric toothbrush, an electric razor, bathroom lighting, and a running air conditioning unit to a high-wattage hair dryer, chances are the circuit will be overloaded.