Just read an AP story about Ari Derfel, a Berkeley caterer, who saved his trash for a whole year, composting food scraps. He apparently kept every tissue, every receipt, plastic bottle, and wrapper and put them in bins in his apartment. Here's Mr. Derfel's saveyourtrash blog. I just emailed him to ask if he would do an interview for the blog.
Got the photo from Mr. Derfel's blog via The San Francisco Chronicle (photo by Kim Komenich)