Washing machines leak—not routinely, but often enough to make precaution worthwhile. After all, it's never easy or cheap to undo the effects of water damage. The wise course? Equip your laundry room with a leak alarm. That way, if the washer (or utility sink) springs a leak, you can snap into action to limit the damage. However, be aware that the most basic leak alarms come with a severe limitation. That is, if you're not at home to hear the alarm sound, you're out of luck. Opt instead for an internet-enabled option like the D-Link Wi-Fi Water Sensor. When triggered, the device delivers an alert to your smartphone, so you get the information you need, right when you need it, wherever you happen to be. Available at Amazon; $59.99.
Related: 8 (Nearly) Invisible Laundry Rooms