Food stamps ??? actually the Supplemental Nutrition Assistance Program ??? go to 47 million Americans a month, almost half of them children and teenagers. ???Every week is a struggle as it is,??? said Heidi Leno, 43, who lives in Concord with her husband, 9-year-old daughter and 5-year-old twins. ???We hate living paycheck to paycheck and you have to decide what gets paid.???Starting in 2009, the