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The design ideation initiated by the concept of creating a social impact, and peer pressure through the solution. It further developed on including the positive reinforcement as part of the process and targeting motivation, ability, and triggers of the users.

The design is now a two-pronged approach:

a) social initiative to reduce paper cup usage.
b) a personal motivator to carry reusable cups daily.

We researched regular Starbucks goers, questioning them about paper cups and why do they do/don’t bring the reusable cups along with them. A few of the main insights include convenience, bystander effect, forgetting cups and washing cups.

Major challenges encountered:

- We focussed narrowly on the social aspect of the problem, that is, bar graph visualization

- Balancing the two-pronged approach and integrating it with the prototype

- The technical challenge of making the idea work

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