Get up to 20 ounces of free brewed Starbucks coffee tomorrow when you bring in your travel mug. Starbucks is encouraging people to switch from the wasteful paper cups to reusable ones, for obvious environmental reasons. Another novel idea would be to just make your coffee at home/office, or sit down, chill out, and sip your coffee at a cafe that uses those nifty glass/ceramic mugs. (But we will admit that we sometimes succumb to using the blasphemous paper cup ourselves when on the go.)