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one more tip to add... you can swipe through open apps just by swiping left and right on the home bar. A quick swipe left to the to the last app used or several swipes left to go back a few apps. If you miss the one you wanted swipe right to get back to it.
 
BrettDS, thank you for explaining that one. I've been trying to do the swipe left to right and right to left for a couple days now but was obviously doing it too high on the screen, which was not working at all. Now that I tried it your way, it's working just great. High-five to you!

And thanks to OP for creating and keeping this thread up to date. It's been immensely helpful.
 
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