A cell phone is helpful; it is one of the most important communication devices. For example, if you want to talk with somebody for an important reason, you can. One time I was coming back from work at 10 o' clock at night, and I had a problem in my car. It wouldn't move. I was scared to go into a store to call my brother because I didn't know the places there. I thought it could be dangerous. That night, I found out that owning a cell phone is important.