Starbucks is once again giving away free brewed coffee for Earth Day — Friday, April 22, 2011 when you bring in a reusable travel mug. No purchase necessary! Cool deal.

Valid in East China, Taiwan, Hong Kong, Australia, Indonesia, Korea, Malaysia, New Zealand, Philippines, Singapore, Thailand, Austria, Bahrain, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Egypt, France, Germany, Greece, Jordan, Kuwait, Lebanon, Netherlands, Oman, Poland, Portugal, Qatar, Romania, Russia, Saudi Arabia, Spain, Sweden, Switzerland, Turkey, United Arab Emirates, UK, Ireland, Argentina, Bahamas, Brazil, Chile, Mexico, Peru, Puerto Rico, but “ask your local barista for details”… nice disclaimer :)