You can get cheap calls on your T-mobile plan by hooking it up with Grand Central, reader Noah's T-mobile bill confirms.

Grand Central is a free service that creates a new phone number that you can link to other phone numbers. When someone calls your Grand Central number, it forwards to the other numbers you have attached.

T-Mobile has a "My Fave 5" plan that gives you unlimited nationwide calling to those numbers you put in your Fave 5 network.

So...

1) Be a T-Mobile customer with a

— BEN POPKEN

PREVIOUSLY: Credit card companies are embedding radio frequency tags (RFID) in credit cards. Since these are transmitters, there's the possibility of a thief using an RFID sniffer to snag your credit card digits.

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