I want to learn everything I can about how to maximize my use of this phone. I love it so far but I want to learn more! 1. Starting with the SD card... how do I make file folders and how do I know the correct names so my Eris will read it properly? Please recommend some file folders I should have... 2. What is rooting and should I do this? 3. Any apps you can't live without? Thank you for all your input!!