Homeless tax credit?

I was homeless for most of 2011, but recently got a job and will be claiming W2 income. Someone told me there is a tax credt that I am eligible for. I am from Illinois if that effects anything. Does anyone know what the refund amount is and what form is necessary to file?
    Sorry, but there is no such credit. Just answer the questions in the interview and we guarantee that your return will be correct and that you will get the biggest refund possible.
      there is no homeless tax credit but when filling out your tax return, depending on your age, your filing status and your income on the W2 you could qualify for the earned income credit
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