The document proposes a mobile application called Re-Caffeine that encourages coffee drinkers to recycle disposable cups by earning points for their team, with the top recycling teams receiving sponsorships from coffee chains. Users would scan their cups into recycling bins linked to the app, and compete on teams divided by coffee preferences like hot, iced, or whipped. A cultural probe and context mapping study are also outlined to understand user behaviors and inform the app's design.