McDonalds Free Iced Mocha or Hot Mocha

Each Monday from 7:00am to 7:00pm, McDonald’s will be giving away a free Iced Mocha (7 oz) or Hot Mocha (8 oz)
This promotion starts July 13th and runs through August 3rd
More details can be found here

Note: this appears to be a national promotion, but since McDonald’s are individually owned & operated, I would strongly suggest checking with/calling your local McDonald’s to ensure that they are participating before making a special trip you have a McDonald’s McCafe nearby, then you can score a yummy free sample!