What are good iOS and Mac OSX applications for college?

Hello Friends,

Going off to college, I am taking my MacBook Pro, iPhone 4s, iPod nano, and iPad (1st generation) and I am curious on what applications would keep productive, on schedule, help with class and projects, and anything that would be a significant benefit to me in college. I am very handy with iCloud so any Mac OSX applications that have an iOS version too would be greatly appreciated. If you could tell me what applications you recommend and what they are good for, that would be perfect!

Thanks In Advance,
Agili Ron

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