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Today is National Coffee Day, a highly important, thoroughly made-up event.

Although Hallmark has yet to create an official greeting card (it does, however, have this), others have hopped mightily on the caffeinated bandwagon.

It might be a good idea, too. According to a report from the National Coffee Association, coffee consumption is up 7 percent from 2011. A study from the "New England Journal of Medicine" tracked the health of more than 400,000 older adults for nearly 14 years. Coffee drinkers were less likely to die during the study than those who didn't drink it. The study also found that men and women who averaged four or five cups of Joe per day had the lowest risk of death.

On this buzz worthy day, many coffee companies, bakeries, fast-food chains and convenience stores have great deals all day long. Some are free; others require coupons or purchases. And since not all locations participate, do your research in advance. Here's a cupful of our faves.

Caribou Coffee : Free small Army's Blend Coffee on Saturday

Dunkin' Donuts: Printable coupon for a 99-cent hot or iced latte through Sept. 30. Printable coupon for six free doughnuts with the purchase of a Box o' Joe through Sept. 30. Printable coupon for $1 off the purchase of a dozen K-cups through Oct. 28. 99 cents for a small, hot or iced latte. The company is also unveiling two new flavors to its line-up of seasonal beverages - Pumpkin Mocha and Pumpkin White Chocolate

Eight O'Clock Coffee products: Printable coupon for $2 off at any store that sells this brand and accepts manufacturer coupons.

Einstein Bros. Bagels: Buy-one-pumpkin-latte-get-one-free on Sept. 29 at locations nationwide.

Krispy Kreme stores: Customers get a gratis 12-ounce cup of their new House Blend Coffee on Sept. 29. Krispy Kreme has locations in 39 U.S. states and three Canadian provinces. As part of their 75th birthday celebration, they are also giving away free coffee for a year to 75 people! To win, complete the form by Sept. 29. The winners will receive two bags of coffee every month for the next twelve months - plus a free T-shirt and coffee mug. The giveaway is open to U.S. residents age 18 and older.

McDonald's: Get a free cup of coffee through Sept. 29 at select East Coast locations.

Punchbowl.com: The Party-planning website is offering free digital greeting cards.

Tim Hortons Cafe & Bake Shop: Print this buy-one-get-one-free coffee coupon. It's good on Sept. 29 at their U.S. locations.

Wawa Inc.convenience stores: Sign up to receive an immediate coupon for a free 16-ounce iced latte through Oct. 2. Wawa has locations along the East Coast.