Headaches tends to follow in the wake of water whenever it collects under the sink, behind a wall, or anywhere else the builders never intended it to go. If you've dealt with water damage in the past, you know the key is to catch the issue as quickly as possible, before a controllable problem turns into a costly ordeal. Your best bet: Place leak alarms near each at-risk area. Homeowners used to doubt the efficacy of leak alarms, because although piercingly loud when triggered, you had to be at home to hear the alert. Not anymore. WallyHome sends you a text message or email, so no matter where you are, you get the critical info you need to keep your home high and dry. Available at Sears; $100.