Below is a link from an article written by Allyson Kazmucha on iMore. It's a very useful tip about how to quickly close all open Safari tabs on your device running iOS7. How many of you guys knew about this, and will you use it now?
How to close all open Safari tabs in just a few taps in iOS 7 | iMore
How to close all open Safari tabs in just a few taps in iOS 7 via @iMore
How to close all open Safari tabs in just a few taps in iOS 7 | iMore
How to close all open Safari tabs in just a few taps in iOS 7 via @iMore