People! Always wipe your cell phone before you sell it, give it away, or trade it in. Do not assume or expect that someone else will do this for you! This was just one of the mistakes that led to Rachel Swanson being called by strangers several weeks after she thought she donated her old phone to charity. But the store that handled the donation, and the company responsible for actually processing the donated phones, screwed up their parts, too. Here’s how it was supposed to have work, and what you should always do before donating your phone to any organization.