A really useful feature in case you want to receive a warning notification before you use all of the mobile data available according to your mobile provider contract. It's a great way to avoid additional charges.
If you want to print website but you don't want to print certain objects on the page, you can remove them before you print the page. I will show how you can easily do that with the help of simple web application.
Sometimes we don't want others to know about our newest relationship gains or losses. This is the way your friends and other Facebook users won't even notice it when you change it.