The best way I can think to describe Rebecca Romijn, really, is that she's a walking smile.

Arriving at her favorite café, she's in wide-mouth glee, greeting everyone on staff-and laughing, on average, about once every three minutes. Why? Life is good! This month, the 39-year-old-who just wrapped her second season of NTSF: SD: SUV on the Adult Swim network-is celebrating five years of marriage to actor Jerry O'Connell. Their twin girls, Charlie and Dolly, are three-and-a-half and bringing out her best. And she looks amazing. 

What's her secret to losing the baby weight-and staying fit and full of energy? We asked and she arrived armed with notes ("I'm an interview nerd," she laughs). Here, her recipes for the good life.
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6 Tips for a Happy Life
Splurge a little. "I'm really not about deprivation.