Please see attached link for tips on how to maximize your tax refund. Pay particular attention to item #15 especially if you get federal withholding from your employer. In doing a rough sketch up of my taxes last week, I found that instead of a refund, that I would owe money (and I earned less). Felt sick about it all weekend. Read these tips this morning and it looks like I will get my refund.
http://finance.yahoo.com/taxes/article/108262/the-most-overlooked-tax-deductions