My absolute favorite is keyboard shortcuts. I can type way faster using "teen text lingo" and I have the shortcuts set up to change the "lingo" to normal easy to read and understand sentences!
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you take your 5 fingers spread out on screen then slide them all to center...that closes the app to home screen.
if you have multiple apps open take 4 fingers and swipe from right to left and you will be able to open another app you may have in the background without having to go back to home screen.
Use this same swipe feature from bottom to top to see all your apps that are still running in background.
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What do you mean you don't have to use the home button anymore on iOS 5? Can you tell me how that works? How do you go back to home screen if you have a full screen app open?
you take your 5 fingers spread out on screen then slide them all to center...that closes the app to home screen.
if you have multiple apps open take 4 fingers and swipe from right to left and you will be able to open another app you may have in the background without having to go back to home screen.
Use this same swipe feature from bottom to top to see all your apps that are still running in background.