As one of its daily deals, Starbucks offers its Starbucks Free Brewed 16-oz. Tumbler for $30 plus $4.95 for shipping. Even better, for the entire month of January, if you bring this tumbler to a Starbucks location, you will receive a Grande Pour Brewed Coffee for free. That's essentially $1.13/coffee and the best such offer for coffee we've seen from Starbucks this year. (Last year's mention of this deal cost $11 less.) Sales tax is added where applicable. Deal ends today.