It’s easy to wire an electrical outlet backward and not know you did it, exposing yourself to an increased risk of shock, but a simple rule, known as the Steelers Rule in Pittsburgh, will assist. An outlet has a set of brass-colored screws on one side and silver-colored screws on the other. The power line, in most cases, if done properly, will have black (hot) and white (neutral) wires. The proper connection is the black wires to the brass screws (as shown below), the brass looks like gold and the uniform colors of the Pittsburgh Steelers are black and gold, so you just need to remember “The Steelers Rule” to keep it straight.
Big shout out to my brother-in-law Albert for this handy way to remember!