What accessories to get for my new MacBook Pro?

I will be placing an order for my new Macbook Pro later this week. I will be getting a mouse for it, but was wondering if anyone has purchased any accessories with their Macbook Pro that are really worth the money? I've been trying to think of accessories that would help me out in college - the whole reason I'm buying the laptop in the first place.

So! Any really good Macbook Pro accessories you can reccommend?

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Tags: laptop, Mac, MacBook