Yapta is a newish website where you enter in your flight information so that the website can track whether the price of your airline ticket is going up or down. It will send you an email alert every time the ticket fluctuates in price. When it goes down, you can decide that now is a good time to buy.And that’s when the fun begins…After you purchase your ticket, you let Yapta know at what price you locked it in — and it will continue to monitor the ticket price. If it goes down again, you will get the email alert and then you immediately contact the airline, telling them that you want a voucher for the difference in cost between what you paid and what the cost is right now. Yeah, they will actually send you a voucher.Last Summer, I bought 4 tickets to Boise for $300. The price went down three times. The lowest eventual price was $240. Can you do math? I saved $240 on those tickets.And when I bought tickets for Denver for this Spring, I was able to apply those vouchers to my next tickets (they expire in a year, so I had motivation). End result: we are flying from LA to Denver for $77 roundtrip each.My arm hurts because I’m patting myself on the back so much.