Article: Most fixtures will have an individual shut-off located beneath the fixture. It will likely be a chrome valve. Sinks and showers may have two valves, one for hot and one for cold.  Some appliances, such as washing machines, dish washers, and refrigerators, may have a water shut off switch on the body of the appliance or on the hose connecting the appliance to the wall. To find the shut off for a water heater, look for a water cutoff valve directly above the heater on a connected pipe. This will cut off the water to the fixture. If there are separate valves for hot and cold, you'll need to turn both off. Afterwards, you'll still be able to use running water in other fixtures or appliances throughout the rest of the home.  Old or dirty valves may be difficult to turn at first. If the valve is stubborn and won't turn easily, wear a work glove to protect your hand so you can turn with more force. Severe cases might require a wrench. With the valve closed, the water should be shut off. You'll need to drain water remaining in the line between the valve and fixture, so keep a bucket handy. When you are finished, turn the valve counter-clockwise restore the water supply. Gravity will cause excess water to drain. Position your bucket beneath the line or part you are repairing. When the fastener is loosened, water will drain into the bucket.

What is a summary?
Locate the cutoff valve closest to the fixture. Turn the valve clockwise. Make any necessary repairs.