Proposal:

Living with five roommates is a wonderful thing, but it feels terrible when five of you share one fridge. The fridge is always in a mess, rotten tomatoes, takeaway fried chicken from last week, ginger from last year, etc. And people always forget how long things have been in the fridge. This Fridge Organizer intends to help organize items in the fridge. By putting a small sensor on each item, users are able to label the owner and track the dates. Users can check the status at any time and receive a notification when something is expired. 

Parts: temperature sensor, time tracker, input app, output notification (?)