In the course of a busy day, you may write a check at the grocery store, charge tickets to a concert, rent a car, mail your tax returns, change service providers for your cellular phone, or apply for a credit card. Chances are you don't give these everyday transactions a second thought. But an identity thief does. This guide provides specific tips, tools and techniques to help you prevent and respond identity theft. It includes sample letters and forms for your use. Topics include: How thieves get and use your information; Immediate action steps if your information is lost or stolen of your identity is stolen; How to prove you are a victim; What is an identity theft report; When financial institutions are uncooperative; How to correct your credit report; Handling medical identity theft; Protecting your credit, ATM and debit cards; Computer issues and using public wireless networks and, Completing an identity theft affidavit.