Greatly concerned with America's ever-worsening landfill problem, a group of San Francisco-based heroin addicts have established EcOD, an environmentally friendly needle sharing program. 'So many of us are using needles once and then throwing them out,' said Dave Pierce, strung-out junkie and program co-chair. 'That's just wasteful. If you come across an old needle lying around, by all means, use it. And if you don't have one, borrow from a friend.' Pierce also recommended a soapy washcloth for cleaning dirty syringes. 