How are you liking the note 10.1? Personally, I couldn't stand it (build quality and lag), but its great to hear that you like it.
With android, the thing to remember is to always get your apps from google play, never pirate stuff.
As for apps, I LOVE onenote:
https://play.google.com/store/apps/d...office.onenote
and I am addicted to Wheres my water:
https://play.google.com/store/apps/d...com.disney.WMW
Oh, and ah, regarding the infuriating android multitasking system, remember that when you hold down the home button, you get the recently used list and not the "currently running" list, also, when you swipe apps away, you don't really close them. Theoretically, you don't need to close apps manually, but since most people do anyways (android's task management doesn't really close stuff aggressively, and your machine will begin to lag), I suggest you find a good task manager).