According to the National Food Processors Association, bring just enough food to eat without having to deal with leftovers. Frequent hand washing is a must. If you are away from a sink, purchase antibacterial hand wipes to do the trick. Store all food in a well-iced cooler kept in the air conditioned car instead of the trunk while traveling. Avoid packing foods containing raw eggs such as mayonnaise and cream. Take-out foods, should be eaten within two hours of pick up and chilled properly. Knowing your food is safe will let you concentrate on having a good time.