CHATHAM, NJ — If coffee is a must-have morning drink for you, then we've got some great news: Friday is National Coffee Day, and chains are giving away free cups in celebration.

More than half a dozen chains in New Jersey are participating on Sept. 29, with some giving away no strings attached free coffee (others are having buy one, get one deals). Local shops might also be participating, so make sure to check there too. Here are all of the chain locations offering National Coffee Day promotions in New Jersey:

Dunkin Donuts It's buy one, get one free at Dunkin Donuts this Friday. Buy a medium, large or extra-large hot coffee and receive a free medium hot coffee. Sorry, no iced coffee on this deal.

Krispy Kreme Krispy Kreme is turning Coffee Day into Coffee Weekend. Between Friday and Sunday, anyone who enters the store can get a free hot coffee in any size or a free small iced coffee, no purchase necessary.

Tim Hortons

Tim Hortons is taking it a step further, with a full week of free coffee. Between Sept. 29 and Oct. 8, customers with the Tim Hortons app can get a free original blend, dark roast, decaf, or iced coffee in any size.

Wawa New Jersey favorite Wawa is making it easy to tell what's included in its promotion; they're offering "free coffee, any size, all day" on Friday.