I need my cel phone a lot when I want to go somewhere that I never been before, gps saves my life sometimes, as I am lost most of the time.
but if I have to be honest I really love taking pictures ,and listening to music all the time. I think the applications to find books work really well ,and the other applications can be really funny
finally the only thing that i can say is, my cell phone is a disgusting tick because i always keep it with me.