Mitt's take-home-pay message .....

For example, a $70,000 middle-class family whose tax bracket falls from 15 to 12 percent will see a roughly $2,100 increase in take-home pay. That’s not nothing. Mortgage. Tuition. Car payments.

A married couple earning $143,000 whose tax rate under Romney drops from 25 to 20 percent will keep roughly $7,100 more in take-home pay. That’s good money. Or to use Obama’s middle-class benchmark, a married couple earning $220,000 a year whose rate drops from 28 to 22 percent will save over $12,000. That’s a big number.