Snack brand SunChips, a division of PepsiCo’s Frito-Lay, likes its packaging to be ubiquitous on shelves — but on sidewalks, bushes, in trees or the random gutter? Not so much. The company is rolling out compostable, organic-based packaging bit by bit this year, with a fully compostable bag due out on Earth Day in 2010. (4/16/09)