3. Streaming in HQ
You may not realize this but streaming in high quality has led to overusing of cellular data. Often we will switch our youtube streams to HD prints or try to get better quality. In doing so, you are using a lot of data and that is quite foolish. In order to turn this OFF, go to settings, and click on Music. Find and disable High Quality on Cellular. This will prevent you from streaming on HQ mode. However, if you really want to avoid using cellular data, just turn off the option in Music and this will make you stream music only on Wi-Fi.