All about my keitai

Today, we obsolutely have our own ''keitai'' even if we were children, and naturally I have one, My keitai is pink and softbank's, and I use it everyday. It has a lots of function, like not only sending e-mails but listening to music, taking photo, and something like that. It's very convinient, because I can contact with my friends at any time anywhere, and it gives me entertainment as I said. I often use Internet, and I preserve favorite music and photo which I search, and then exchange it with my friends.
However, I must remember if I use it so much, it gives me waste of time and money.