Robert Briones weathered the downturn in the economy well, working more than he needed, going on a vacation to Norway with his family and eating out at lunch from time to time. But even the 48-year-old psychologist can't escape the latest blow to consumers' finances: a tax increase that will affect an estimated 160 million workers. As part of the deal on the so-called fiscal cliff, Congress extended tax breaks for middle-income families but did not extend a payroll tax cut that was set to expire this year. As of Tuesday working Americans saw a tax on their paychecks rise to 6.2% from 4.2% last year. Economists estimate that this could strip $115 billion in disposable income from the economy this year.