Sunday is National Coffee Day and that means freebies and discounts at some major chains. 

Starbucks will give visitors a free sample of Ethiopia coffee. 

Krispy Kreme is offering customers a free 12-ounce cup just for walking through the door. 

Dunkin Donuts is also giving out free joe, but you'll have to download the company's mobile app to redeem the offer. 

An estimated 85-percent of Americans make coffee part of their daily routine.  (Metro Networks Inc.)

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