Lots of holiday parties and dinners feature buffet-style eating, where all the food is set out and people go through the kitchen, serving themselves as they go. Make sure that fresh serving utensils are used for each dish -- separate forks and spoons for everything on the buffet table. If food has been sitting at room temperature for two hours (especially if the temperature in your home is more than 70 degrees), toss it -- that's the point at which illness-causing bacteria starts to grow.
