Entertainment, gifts and bvacations/b:Britney-$102000 a monthKevin-$5000 a monthClothing:Britney-$16000 a monthKevin-$2000 a monthInsurance, including car and life:Britney-$785 a monthKevin-$3000 a monthCharity:Britney-$500 a monthKevin- $0Utilities including gas, electric, ... But thanks to Nina bBiggar/b, who runs the Britney Spears Foundation from her home in Cambridge, Mass., the pop star can count her charitable giving as a bright spot in her sketchy world. ...