"Not Enough Storage" message preventing me from using iphone 4S I am using an iPhone 4S. This morning, the "Not Enough Storage" message popped up on my screen and refused to go away. This means that while I can open apps using siri, the message "blocks" me from using the touchscreen. So I can't even switch the phone off to reset it as I cannot slide the power bar off. 

Another way to switch the phone off will be to just let the battery drain but at 85% charge, it is going to take a long time! Anyone knows how I can get rid of this message that will not go away?
Hold the home button and power button at the same time until the phone restarts. Connect it to your computer and delete some stuff :D