Many of us keep a pitcher of water or juice in the refrigerator. But if you leave that pitcher uncovered, do one thing: Look for a lid or place a small plate on top to cover it. A refrigerator will draw moisture from uncovered liquids, which forces it to go into a "no-frost" mode. This makes it work harder and use more energy. A simple rule of thumb is: The less moisture inside your fridge, the less energy it uses to do its job.
ANDREWS MCMEEL SYNDICATION