Park2Go.com’s friendly, uniformed staffers stand guard at their parking-lot posts 24 hours per day, keeping a safe watch over cars while their owners jet off to their destinations via Newark Liberty International Airport. Free shuttle vans arrive every 10 minutes to whisk travelers on the four-minute ride to the airport, picking them up and dropping them off right at their cars rather than making them search for a bus stop or hitch rides on another traveler’s rolling suitcase. While owners are away, cars remain secure throughout their stay, protected by surveillance cameras and a fence that surrounds the lot.