I propose an exciting new idea for promoting a  sustainable drinking life .
           The idea is to confer every coffee to go cup with   " Value potential" and the value increases every time the cup is recycled. As the cup  cycles in a  Consumer-Recycle-Consumer chain , its value proportionally increases. Periodically Starbucks awards the cups which accrued the highest value potential in a given time. All the consumers who are involved in that chain are automatically credited with the prize money.                   Additional prize opportunities like random picking of members from the chain, Instant wins when consumer recycles a high value cup etc can also be implemented.