Keep a record of your account numbers, their expiration dates, and the phone number and address of each company in a secure place
Keep an eye on your card during the transaction and get it back as soon as possible
Void incorrect receipts
Destroy carbons
Save receipts to compare with billing statements
Open bills promptly and reconcile accounts monthly, just as you would your checking account
Report any questionable charges promptly and in writing to the card issuer
Notify card companies in advance of a change of address
Don'ts
Lend your card to anyone
Leave cards or receipts lying around
Sign a blank receipt. When you sign a receipt, draw a line through any blank spaces above the total.
Write your account number on a postcard or the outside of an envelope
Give out your account number over the phone unless you're making the call to a company you know is reputable. If you have questions about the company, check it out with your local consumer protection office or the Better Business Bureau