We have one of these little composers where we dump all of our household compost that the missus mixes in with leaves, grass etc. This is an old pic but you can see a pile of compost behind it. She typically has 3 piles going at all times each one a different year, by 3 years old it's generally good to go. We'll have chicken manure pretty quick too which she plans to do a special compost pile for. She's a hard working girl! You can see a pile here behind where the greenhouse is now Just back right out of frame.