National Coffee Day isn't until Thursday, but early birds will get a leg up on the deals they can grab that day.

Peet's Coffee: Participating cafés will give away a free medium drip coffee with the purchase of any fresh food item.

Pilot Flying J: Get a free small cup of Pilot coffee, tea or cappuccino using an online coupon available at Pilot Flying J's Facebook page. The offer is available for customers in the U.S. all day on September 29.

Krispy Kreme: Free small coffee and a free Original Glazed doughnut will be available on September 29 at participating locations.

Love's Travel Stops: $1 of every 24 ounce coffee or cappuccino will go to Children's Miracle Network Hospital. In Bakersfield, donations will go to Lauren Small Children's Center and Tehachapi store raises money for Children's Hospital Los Angeles.