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.)