I'm quite passionate about my compost. It's a simple system, 2 permanent cages with galv across the front, and everything goes on in layers. At the end of Summer, I empty them. The dry stuff around the edges forms the base of the new pile. Water is key, it must be slightly moist so in Summer I occasionally tip my greywater water onto the pile to keep it cooking. Dry compost is useless. I layer with weeds and lawn clippings - this is the green layer, and leaves, paper, straw, poo - this forms a brown layer. I try to do one brown followed by one green, but it never works out that way in reality. I have a few favourite spots where I go to get autumn leaves each year, and friends give me their lawn clippings sometimes. The pictures are of a temporoary one I built as I needed compost in another part of the garden. It's not terribly attractive, but it's working well.