Profile Sisi Chen Location: Livingston, NJ 07039, USA Last activity: on 09/01/2019 Joined: on 08/01/2019 Design quotient Research 0pt Idea 0pt Evaluation 0pt Collaboration 4pt Total 4pt Recent comments (1) View all link Sisi commented on Hello Stojo! Goodbye Disposable Cups. 12:28, Jan 09, 2019 Love the idea and I think it can be commercialized. one question, is the cup easy to clean without detergent? I like using my own cups but do not want to bring a small bag of dish detergent all the time.