Ways to Save Money on Your Cell-Phone BillIs it really possible to save money on your mobile service? It is--if you know the right places to look.

Laura Roeder, a social media consultant in Los Angeles, recently found a secret way to save on her cell phone service. "T-Mobile has calling plans that aren't published on their website--plans they're hesitant to tell you about," she says.

The catch? You have to pay full price for a new phone. "I paid $500 for my new smartphone instead of $200," Roeder says. "But because I'm paying $30 less for service each month, I'll make up the difference in just 10 months." Plus, it's a month-to-month plan, so she avoids the hassle of carrying a contract.