If you're catching a flight at the airport this summer, make sure you pack up all your belongings before boarding the plane.

A new survey shows that nearly 8,000 mobile devices are left at some of the largest airports in the United States. It seems that people are leaving behind some expensive items, including iPads, laptops, phones and USB keys.

I guess the lesson here is to make sure you look around before leaving the waiting area of an airport, and look around where other people were sitting too!