We seen a lot of DIY home automation projects over the years, but Instructables user electronichamsters shows off one of the most complete systems we seen yet. With it, you be able to monitor just about everything in your house.
Floor Plan Light Switch by Taewon Hwang: WHATTTTT. floor plan light switch lets you control all the lights in your house in one spot. much better than turning them off and sprinting to your bedroom through the darkness