Rachel Martin of Berkeley, Calif., writes: "My husband works for an international development nonprofit that sends him places like Haiti and the Republic of Congo to do hard-to-explain projects related to 'biofuels' and 'carbon sequestration,' so our friends joke that he must be working for the CIA. We decided to fuel their suspicions this year by dressing up as Mr. & Mrs. Smith. We're pictured with our kids, Frances, 3, and Earl, 10 months."
