Have your initials (instead of first name) printed on checks. If someone takes your check book they will not know if you sign your checks with just your initials or your first name but your bank will know how you sign your checks.
Never have your Social Security number printed on checks. If you have it printed, anyone can get it.
Photocopy the contents of your wallet. You will know what you had in your wallet and all the account numbers and phone numbers to call and cancel. Keep the photocopy in a safe place.
Notify your bank that you do not want your personal information shared with marketing firms.
Call a single telephone number, 1-888-5OPTOUT, to inform all the major credit reporting bureaus of your preference to opt out of having your personal information shared with companies that want to market services to you.
Destroy or shred any of your credit card mailings or other documents containing personal information before discarding them.