How smart is your sprinkler? If you use a traditional sprinkler—one that attaches to a standard garden hose—then your watering routine is only as good as you are. Even the best grass guru may forget to water the lawn or accidentally let the turf wither while away on vacation. Never miss a watering again when you install Skydrop's Smart Sprinkler Controller. The ingenious gadget remembers your lawn's soil type, zone, sun exposure, and connects to your home Wi-Fi network, enabling it to check the weekly weather forecast and decide exactly how much water to dole out every time it soaks the grass. Available from Amazon; $299.