What do recycling, reusing wrapping paper, and staying close to home have in common? Besides the fact that these are all ways to reduce negative impact on the environment, they’re also habits that come naturally to residents of America’s least wasteful city—San Francisco. A Nalgene-sponsored study looked at the behavior of more than 3,000 individuals in 25 American cities, questioning inhabitants about everything from how long they stay in the shower to whether they give their teabags a second steep. Nalgene then produced a ranking of participating populations according to their eco-friendliness. New York came in second as a model metropolis, followed closely by Portland. To find out how your habits and hometown measure up, take an online test and discover some fun trivia tidbits while you’re at it. Aren’t you dying to know which American city uses the most rubber bands?