Some iPhone shortcuts to help you

No video, sound only
If you want to just listen to the audio track of a selected video. You can do it by first playing the video as per normal, then pressing the Home button. This will turn off the screen and the video. After that press the Home button once and followed by a Home button double-click. Now you should be listening to the audio with the screen off. This help to save battery also.
Take screen shots
Press and hold the Sleep button while tapping the Home button. The picture will be added to your camera roll.
Cancel the ring!!!
To mute your iPhone ring immediately, press the home or volume button.
Precision zooming
Hold down your thumb on the screen and then swipe your index finger back and forth.
Hold the key
Hold down the “@123″ button and sliding your finger to the required symbol, then releasing it. The qwerty keyboard will reappear.
Press and hold down the “.com” button and you will see options like “.org”, “.edu” & “.edu” appear on the screen.
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