What do you do with pre-owned items?

We are graduate students at the University of Washington working on a course project researching the usage of websites & internet forums that people use to exchange pre-owned items. The responses that we receive from this survey will be used to design a solution to improve the overall experience of this exchange.

Thank you very much for your help.

    This is a required question
    This is a required question
    give away pre-owned items for free?
    get pre-owned items for free?
    sell pre-owned items?
    buy pre-owned items?
    trade pre-owned items?
    throw away pre-owned items?
    Please enter one response per row
    This is a required question