5 deals you can get on National Coffee Day, Thursday, Sept. 29

Coffee lovers can get a little extra boost from caffeinated bargains on National Coffee Day, which is Thursday, Sept. 29.

Here are five promotions being offered by restaurant chains this year. Some require loyalty club membership or purchases through apps.

Duck Donuts: With the purchase of a doughnut, customers on Sept. 29 can get a coupon for a free medium hot coffee or cold brew on their next visit. The coupon is good through Oct. 31, according to a news release. duckdonuts.com

Dunkin’...