Before getting a mortgage or any kind of loan, it is a good idea to check your credit. According to the law, you're allowed to receive one free copy of your credit report per year. You can do this by visiting Annualcreditreport.com. Scores range from approximately 300 to 850; generally, the higher your score, the better loan you'll qualify for. Don't forget to check your report for errors. If there are any, dispute them. It may help your credit score. You can also check your credit score for free at www.creditkarma.com.