Here in Germany, no one sweeps up leaves. Really, no one. They sit on the sidewalk for weeks and weeks until they basically rot away or become one with the sidewalk. Some days it's hard to tell where the sidewalk ends and the street begins, which can be a little dangerous for bike riding, but beautiful none the less. Even though the frigid mornings and nights are not what I'm used to, I've never had such a beautiful autumn back in California. It's truly breathtaking.