Doing some last-minute work on your taxes this weekend? Well maybe they'll be a bit easier to do if you know there's a reward at the end of the tax-form tunnel. Next Tuesday, April 15, Dunkin' Donuts is offering a bit of tax-day relief in the form of a free donut. However, I should warn you, much like your taxes, you need to read all the fine print. The donut is only free when you buy any sized hot coffee. If you're interested, find a Dunkin' Donuts store near you.