Know when to use a car service to get to the airport

Finding a cab during peak hours and in peak travel seasons (e.g., a Friday afternoon in July in New York City) or during off-peak times (say, in the wee hours of the morning for a 5 AM flight) can be hard. To avoid being stranded at such times, book a car service. Unless you splurge on a stretch limo, it probably won’t cost that much more than a regular cab.