Saturday night at 8 p.m. people all over the world, beginning in New Zealand, spreading westward, and ending in San Francisco, will turn off their lights for an hour. I'm planning to join in -- what could be more elegant than having dinner by candlelight, after all? Whether or not it makes a dent in actual energy consumption, it demonstrates the importance even a small act can have, when executed day after day. I encourage everyone reading to join in, wherever you are. Who knows, maybe it'll be so soothing to eat by candlelight that we'll adopt it forevermore?