There's some free coffee coming your way this week. Wednesday, Starbucks is celebrating its 50th anniversary and National Coffee Day by serving up a free cup of iced or hot Pike Place Roast coffee. The catch is -- you have to bring in a clean, reusable cup to get it. The freebie coffee is available in cups up to 20 fluid ounces but won't be available in the drive-thru. Dunkin' Donuts and 7-Eleven are also offering up some free coffee deals this week, as well.