Tuesday's dreary weather hardly makes one yearn for a cool drink, but a deal from Dunkin' Donuts may be too good -- in a couple ways -- to pass up in spite of the not-so-summery weather.

Today Dunkin' Donuts will be selling 16-oz. servings of its iced coffee all day for just 50 cents, with 10 percent of the price going to Homes for Our Troops (HFOT), a national, non-profit organization that builds specially adapted homes for injured veterans.

In 2008, Dunkin' Donuts donated $100,000 to support 10 "Build Brigades," three-day construction blitzes to get a house framed with doors, windows, roof and siding. This year, HFOT expects to hold more than 30 "Build Brigades" throughout the country.