Mobile data is precious because nowadays because we get plenty of speed in Mobile networks, hence you may spend all the free data quickly and unknowingly .The 3G/4G plans you have subscribed to can go in vain if the mobile data is not used optimally. Whats the point of having a great data plan when you cant get speed when you need. Don’t blame the service providers ,you’ve got to do it yourselves. Here is a quick how to’s to prevent wastage of data and manage your monthly data plans optimally and wisely. 1. Completely Disable Mobile Data When you are in roaming or in an accessible wifi network . Going to Settings -> Data Usage – > cellular data – > Disable Mobile data . 2. Set Limit to Mobile data usage When using a limited data pack or using phone data in wifi hotspot Go to Settings > Data Usage. Set your data limit as per monthly plan. Set data usage cycle based on billing cycle/usage etc. 3. Disable automatic media download in what