John Carlsen has more than a decade of experience testing and reviewing home tech products, with a major focus on smart home security. He earned his BS in journalism from Utah Valley University.

Having a well-organized labeling system for your home’s circuit breaker and electrical outlets is a goal many strive for but few fully attain. We know why it’s important: Nobody enjoys a game ...

Not all outlet holes are the same, and there's a reason for that. The shapes (vertical slots, round holes, T-slots, etc.) correspond to specific electrical functions and safety features.