A good source of muck (that's a technical term) for the compost pile is sitting right there in your gutters. When I clean out those left over leaves and pine needles and tiny little meteorites I don't put them out to the curb because that would be a waste. I head right over to my compost bin.
Have you ever been really busy during fall and didn't get around to cleaning your gutters? Well, I have and when that happens to me, I usually see little trees sprouting right in the rain gutters. Seems like some composting is already going on up there.