Dont forget to browse the app stores on your portable tablet devices, They may have apps which can help with your studies, I've downloaded quite a few for my Anatomy and Physiology Level 3 course :-) You can download textbooks as well which saves you luggin them around with you :-)
ha I've downloaded loads of books on my Nexus 7 all related to my courses and further learning ready to hit uni next year!
some other apps I've found good to help organise my time for study / play are:
(all on google play)
Any.Do - its free and is a brilliant and easy to use to do list. Good to free up some study time around other projects
AnyMemo free - flash cards, very useful for learning key facts and testing yourself
Google Drive - keep a backup of all assignments just in case, and to keep a track of my own research that I can access from any of my Android devices as needed - eg I keep a herb index and treatment index too.
Play music - so much easier to study with some good music on in the background
Pulse - it aggregates several feeds from useful websites into one app and looks brilliant; so I can easily keep my eye on medical studies and other research etc
White noise - sometimes a quick chill out or some random background noise helps me refocus and concentrate more;
Alchemy - its such a simple puzzle game but so addictive and always being updated! good for a distraction
Evernote - makes it was to quickly jot down an idea, save a relevant picture that may be useful, a website snippit I like etc a kind of jotter