This undated photo provided by Starbucks Corp., shows a reusable cup. Starbucks Corp. is rolling out a $1 reusable plastic cup at its cafes starting Thursday, Jan. 3, 2013. The Seattle-based coffee chain already gives customers a dime discount each time they bring in reusable cups for refills. Now it’s hoping the new cups which bear its logo and resemble its white paper cups will increase the habit. (AP Photo/Starbucks Corp.)