In some countries, crickets are considered good luck. Because of their ability to reproduce prolifically, they are a symbol of abundance and prosperity. In these cultures, finding a cricket in your home is an auspicious sign, thought to be a harbinger of good fortune.
In most of the United States though, these chirping orthopterans are just another annoying and destructive pest. This is especially true in autumn, when crickets (like other bugs) find their way into your home while seeking a comfortable place to spend the winter.