Are there any cool websites to make your Facebook pretty?

my friend's facebook is really cool, but she won't tell me how she did it. someone help?

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Answer:

Look at http://www.fbanners.com/

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Answer:

Try the Stylish google chrome add-on. You can pretty much customize almost any social networking site.

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Answer:

www.Fbanners.com is the best website ever! It has more than 300 different banners for your profile.