Who doesn't like free stuff? Show off your frugality to your Dad by getting him a free coffee Sunday.

Saying it wants to "raise a mug to Dad," Caribou Coffee is offering a buy-one-get-one coffee deal on Father's Day.

On Sunday, June 17, Caribou customers who show the attached coupon — either printed or on their phone — and purchase a beverage at participating Caribou coffeehouses will get another drink free.

Caribou has a Waukesha location at 1890 Meadow Lane.