If you have children under 17, you may qualify for the child tax credit in 2010. This is a credit of $1,000 per child that will directly reduce your taxes. If your credits completely wipe out your federal taxes, in some cases you can actually get a refund of the rest of the credit. Here is a link to an article that further discusses the credit:
http://hubpages.com/hub/child-tax-credit
Remember that you will need to provide your children’s social security numbers and be prepared at some future date to prove they qualify as your dependents. This credit is worth a little extra work.