Unfortunately, sometimes the holidays entail leaving the safety and comforts of home to visit family in their abodes. So, whether you're driving over the river and through the woods—or taking the interstate—to grandmother's house this holiday season, be sure to proceed with caution. A lethal combination of drunk driving, wintry weather conditions, and road-weary travelers results in approximately 400 highway deaths each year between December 24 and December 28, and the number rises again on New Year's Eve. So if you must take to the road around the holidays, figure out who will be your designated driver now. Better yet, take a cab.