And now, our ongoing series, "real money." Ways to put cash in your pocket. Today, we learned that the number of plane tickets bought for christmas and the new year has already increased 50% over last year. And the prices are rising, too, so, we asked abc's dan harris to find simple ways to save hundreds of dollars. Dan? Reporter: Okay, so, say you're a family of four in atlanta and you want to fly to new york city for the macy's thanksgiving day parade, or for some christmas shopping. How do you save real money? Tip number one -- buy now, or not long from now. Prices are only going up. At this point, it's time to purchase your ticket. Reporter: Check this out. A non-stop flight from atlanta to new york for christmas costs $270 today. If you wait two weeks, it'll be $70 more. For a of four, that's 280 bucks. Tip number two -- fly on off-days. If you're willing to travel on thanksgiving day, as opposed to the day before, you will save hundreds. A flight from atlanta to new york goes down $344 a person. For our family of four, that's $1,376. And not only that, you'll find that the airport is empty. The lines are few and you're probably even going to see a few empty seats on your flight. Reporter: Tip number three -- if you're shopping online, try wednesdays. A lot of airlines start their sales on tuesdays and by wednesday, other airlines are matching those sales. And what if you're going by train? The tip is similar. Travel on off-days. If you take act track from boston to d.C. On thanksgiving instead of the day before, you'll save about $300 a ticket, or $1,200 for a family of four. What about if you are driving? The best tips we've heard is to fill up at your destination, if prices are cheaper there. And to fill up well before the peak travel days, because the lines will be much shorter. Whatever your mode of transportation, the way to save is to make a plan now and act on it. As one expert said, this is not a great year for procrastination. Thank you so much, dan.