McDonald's is making a bit easier this week to give someone else a free coffee (and get one for yourself, too). To celebrate the 10th anniversary of its McCafé, McDonald's is giving out 500 "pay it forward" cards (cleverly called McCafé It Forward) that can be used until Friday, August 23. The card, if you get one, gets you a free small coffee and the chance to give it to your friend, pass it back in line, or just leave it for someone else to use.