I'm considering switching from my 4S to the Note2. 1. On iPhone, I can double tab on the home button to switch between open apps. How do you do this on the Note2? 2. How do you clear cache, history, etc. from the default "Internet" browser? 3. I clicked and held on some text in the web browser and was able to select the text, though I could not find an option to copy the text. How is that done? Thanks.