Here is a great tweak for your iPhone, but you must be Jailbroke to use it. The app is called Zephyr and it can be found in Cydia using the Big Boss repository.
This will let you swipe up from the bottom of your screen to bring up the multitasking feature. It also allows you to swipe from the left or right of your screen to switch between open apps. This may not sound like much but it’s very handy opposed to using the Home Button double tap to use this feature.
ElectricSproket 
Astounding article bro. This kind of is just a exceedingly nicely structured posting, just the tips I was hunting for. Thanks