On Monday morning, Dunkin’ Donuts is handing out free MetroCards instead of the coffee you will so desperately need. The promotion is part of the coffee-doughnut franchise’s “You Kin Do It!” ad campaign, meant to inspire a nation of fatties to carry on and caffeinate in these troubled times. Look for Dunkin' reps between 6:30 and 9:30 a.m. at 53rd and Lex (January 12); Union Square (January 20); Grand Central (January 26); and Times Square (February 2).