Dont forget your laptop when going on a flight..

How about this news.. Pilot used the laptop of a passenger for checking weather.. for their flight ahead..

http://gizmodo.com/5341675/random-dude-with-a-laptop-called-up-to-cockpit-to-help-pilots-plot-a-new-course

So you see it is better to carry your laptop when on a flight. You never know when it will be useful..