Travelers are being urged to be prepared if they are braving the busiest travel weekend of the year. Orbitz.com senior editor Jeanenne Tornatore says people braving the packed airports should take extra steps since Wednesday is the heaviest travel day of the holiday break, followed by Sunday for returning traffic. Tornatore says it's important for travelers to show up at the airport two hours before their flight and take advantage of time-saving phone apps. Tablets and smartphones can be a lifeline for travelers who need to check flight times or rebook on the fly. For families heading out on holiday vacations, remember to use family-specific security lanes to save time.